Question

Solve by substitution
3x - 2y = 14
y = 5x

Answer 1

x = -2 y = -10

Explanation:

3x-2(5x)=14

-7x=14 ( divide )

x = -2

y=5x

y=5(-2)

y=-10

Answer 2

x = -2

y = -10

(x, y) = (-2, -10)

Explanation:

The question asks for us to solve using substitution.

In this case, we can substitute 5x for y:

3x - 2(5x) = 14

3x - 10x = 14

-7x = 14

Divide both sides by -7

x = -2

Plug -2 in for x to solve for y:

y=5x=5(-2)=-10

(x, y) = (-2, -10)