At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
Use susbstituion :) plug equation 1 into equation 2
you can either solve the system or plug in the given values to see if they fit eg for first one y = 22 -8x - 2 = -8(-3) - 2 = 24 - 2 = 22 they both come to same value so thay fit for first equation Now try the same values for y = -6x + 4 and see if they fit
i think its a
r u sure ?
im not sure
what does -6(-3) + 4 work out to?
it is a
could you help me with this one how many solutions does the system have ? 12y=-3x+20 y=-1/4x+5/3
yw pooja195 's method was quicker than mine though as both -6x+4 and -8x - 2 are equal to y they are equal to each other so you only needed to plug x = 3 into his equation to see if LHS = RHS
the way to do these is to multiply one equation by a number so that the terms in y or x have the same coefficient ( the coefficient is the number in front of the x or y)
so as we have 12y in equation 1 and y in equation 2 we multiply the second one by 12 equation 1 12y = - 3x + 20 equation 2 12y = -3x + 20 - the same equation so how many solution s does this have?
No - Hint; you can put any value of x into the equation and work out a value of y - in fact many many values of x...
so theres not just 1 value theres ?
right infinite solutions
thank you so much