Question

7x + 9y = 119
2x + y = 23 substitute

Answer 1

multiply second equation by 9 and subtract it from first to find value of x, then use that value of x in either equations to find value of y

Answer 2

isn that eliminiation???

Answer 3

Step 1) Solve the second equation for y

2x + y = 23

y = 23 -2x

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Step 2) Plug this into the other equation

7x + 9y = 119

7x + 9(23 - 2x) = 119

7x + 9*23 - 9*2x = 119

7x + 207 - 18x = 119

...Keep going to solve for x...

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Step 3) Plug the solution you found in step 2 into y = 23 - 2x and simplify to find y

Answer 4

@ravergurl , indeed it is elimination, are you supposed to use a particular method ? If yes, please sub y=23-2x in first equation

Answer 5

ya its substitution... use substitution to solve..(:

Answer 6

is x=3.52?? doesnt sound right

Answer 7

x should be 8