Question

Please help.
y = 4 x + 6
y = 8 x + 6
Solve using substltution.

Answer 1

Given:

`y = 4 x + 6 \\ y = 8 x + 6`

Substitute into one of the equations,

`= > 4x + 6 = 8x + 6`

`= > 4x - 8x = 6 - 6`

`= > - 4x = 0`

`= > x = 0`

Substituting value of "x" in any one equation,

`= > y = 4x + 6`

`= > y = (4 * 0) + 6`

`= > y = 0 + 6`

`= > y = 6`

Hence, the values are:-

`x = 0`

`y = 6`

Answer 2

y = 6 and x = 0

Step-by-step explanation:

• y = 4 x + 6 _____equation 1
• y = 8 x + 6 ______equation 2

Solving using substitution method:

4 x + 6 = 8 x + 6

8x - 4x = 6 - 6

4x = 0

x = 0

Find y using equation 1:

y = 4 x + 6

y = 4(0) + 6

y = 6