Mathematics
Jenstar
36

Solve this system of equations. Write the answer as an ordered pair. -2x + 6y = 6 -7x + 8y = -5

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(1) Answers
yougogirl

-2x + 6y = 6 6y - 6 = 2x 6(y-1) = 2x (1/2) * 6(y-1) = 2x * (1/2) x = 3(y-1) ------------ If, x = 3(y-1), -7 * 3(y-1) + 8y = -5 -21 * (y-1) + 8y = -5 -21y + 21 + 8y = -5 21 + 5 = 21y - 8y 26 = 13y y = 26/13 Therefore: y=2. ---------- If y=2, x = 3(2-1) = 3 ----------- Answers: x=3 and y=2.

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