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SephI
 3 years ago
Alright, guys, I'm confused.
J + S = 150
2J + 3.5S = 405
Solving for J
SephI
 3 years ago
Alright, guys, I'm confused. J + S = 150 2J + 3.5S = 405 Solving for J

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hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2you have 2 methods : elimination, substitution. which one u wanna use ?

SephI
 3 years ago
Best ResponseYou've already chosen the best response.1I thought, S = 150  J < sub 2J + 3.5(150  J) = 405 2J + 525  3.5J = 405 1.5J = 120 J = 80, is that right?

SephI
 3 years ago
Best ResponseYou've already chosen the best response.1@hartnn , got a question. If I had, 2x + y = 3, and I wanted to put in y = mx + b I would say: y = 2x + 3, or would the 2x be negative because I switched it's side?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2since u switched side its 2x

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2a better way to explain that is 2x+y=3 subtracting 2x from both sides 2x2x+y= 2x +3 i subtracted because we need to do inverse operation, since 2x was added to y, to isolate y, you subtract it.
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