Question

What is the answer to this 8x+10y=20

Answer 1

We need to find the value of x and y:

$8x\text{ + 10y = 20}$

First, let solve the x variable:

Subtract 10y on both sides

$8x\text{ +10y -10y = 20-10y}$

$8x\text{ =20-10y}$

Then divide by 8 into both sides :

$\frac{8x}{8}=\text{ }\frac{20-10y}{8}$$x\text{ = }\frac{20-10y}{8}$

Replace the x value into the first equation:

$8x\text{ + 10y = 20}$$8(\frac{20-10y}{8})+10y\text{ = 20}$

Now, solve the equation for y:

$20-10y\text{ +10y = 20}$