Question

Y=5x-9
-2x-3=-7 Please show work

Answer 1

Explanation:

Given:

y = 5x - 9 (eq'n 1)

-2x - 3 = -7 (eq'n 2)

Solution:

Solve for x in (eq'n 2)

-2x -3 = -7 (add 3 to both side of the eq'n)

(-2x - 3) + 3 = -7 + 3

-2x = -4 (divide both side by -2)

x = 2

Therefore the value of y is:

From (eq'n 1), Substitute the value of x

y = 5x - 9

y = 5(2) - 9

y = 1

Answer 2

Explanation:

-2x-3=-7

+3 +3
-2x=-4

/-2 /-2

x=2

Y=5(2)-9

Y=10-9

Y=1