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nicole10
Group Title
true or false?
In order to solve a system of equation by substitution, you MUST always solve for y in one of the equations and hen backsubstitute
 2 years ago
 2 years ago
nicole10 Group Title
true or false? In order to solve a system of equation by substitution, you MUST always solve for y in one of the equations and hen backsubstitute
 2 years ago
 2 years ago

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josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
because for example if you have to unknowns and two equations, ex: y=x+5 and the other says x=y6.....then you would have to back substitue the y=x+5 into the value for y in the second equation.
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
dw:1330406766557:dw
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
then just solve for x
 2 years ago

nicole10 Group TitleBest ResponseYou've already chosen the best response.0
thank you i understand now
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
dw:1330406799210:dw
 2 years ago

nicole10 Group TitleBest ResponseYou've already chosen the best response.0
true or false? the xintercept of the line with equation 3x+2y=5 is (5/3,0)
 2 years ago

nicole10 Group TitleBest ResponseYou've already chosen the best response.0
i dont understand
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
because to find the x intercept you have to set the y intercept to 0
 2 years ago

mathg8 Group TitleBest ResponseYou've already chosen the best response.0
The previous problem was False ... you can solve for x and back substitute also !
 2 years ago

mathg8 Group TitleBest ResponseYou've already chosen the best response.0
it doesn't matter for which variable you're solving
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
? if you have and equation with two unknows you wont be able to solve for x....for ex: y=x+5, solve for x? you cant
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
your gonna have to back substitute
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
for the second equation
 2 years ago

nicole10 Group TitleBest ResponseYou've already chosen the best response.0
how do you get 5/3 for x i am getting 5
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
dw:1330407174168:dw
 2 years ago

josecastaneda Group TitleBest ResponseYou've already chosen the best response.1
and your y would be 0
 2 years ago

jerwyn_gayo Group TitleBest ResponseYou've already chosen the best response.0
in finding the yintercept, assume that the value of x is zero, or vice versa. .
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.0
true or false? In order to solve a system of equation by substitution, you MUST always solve for y in one of the equations and hen backsubstitute The answer is false. And as far as y=x+5 you can solver for x. getting x=y5 You can solve for either x or y (assuming you have two equations with two unknowns x, and y. Choosing the one that is most convenient and then substitute the value found in the remaining unknown.
 2 years ago

radar Group TitleBest ResponseYou've already chosen the best response.0
true or false? the xintercept of the line with equation 3x+2y=5 is (5/3,0) First put equation in the slope intercept form: You will get y=(3/2)x+5/2 The y intercept is 5/2
 2 years ago
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