Question

solving systems of equations by substitution
sokve each system by subs
1) y=6x-11
-2x-3y=-7

Answer 1

Substitute y = 6x − 11 into −2x − 3y = −7:

−2x − 3(6x − 11) = −7
−2x − 18x + 33 = −7
−20x + 33 = −7
−20x = −40
x = 2

Then y = 6(2) − 11 = 12 − 11 = 1.

Solution: (x, y) = (2, 1).