Question

What value of y makes the system of equations below true?

y = 9x - 7
y = 6x - 4
a.) 2
b.) 1
c.) -1
d.)-2

Answer 1

The answer is b) 1

Explanation:

If you plug in y=9(1)-7= 2

same goes for y=6(1)-4=2

both the same answer

Answer 2

a) 2

Explanation:

9x - 7 = 6x - 4

3x = 3

x = 1

when x = 1

y = 9x - 7 = 9(1) - 7 = 2

or

y = 6x - 4 = 6(1) - 4 = 2

Answer

a) 2