Question

find the solution to the following system using substitution or elimination: y = 2 x + 6 y / = –3 x + 11

Answer 1

(x, y) = (1, 8)

Explanation:

Maybe your equations are ...

• y = 2x +6
• y = -3x +11

Equating the values of y, we have ...

2x +6 = -3x +11

5x = 5 . . . . . . . . . . add 3x-6

x = 1 . . . . . . . . . . . divide by 5

y = 2(1) +6 = 8

The solution is (x, y) = (1, 8).