Mathematics
alyssamulrooney
18

Use either substitution or elimination to solve the following system of equations, find the solution. Show all of your work. 7x + 4y = -5 -2x + 5y = 26 I attached a picture of the problem.

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(1) Answers
Foreman

Elimination: -5 (7x+4y=-5) -35x + -20y = 25 4 (-2x+5y=26) -8x + 20y = 104 Y's cancel out -43x = 129 Divide each side by -43 X = -3 7(-3) + 4y = -5 -21 + 4y = -5 Add 21 to each side 4y = 16 Divide each side by 4 y = 4

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