Question

What’s the answer to 6x + 3y =

Answer 1

The correct answer is 12

Answer 2

The last answer; 12.

Explanation:

In order to solve this, use substitution. Since it gives you an equation for y, substitute that equation in the other formula as y. This will give you:

`6x+3(-2x+4)=?`

Then simplify:

`6x-6x+12=?`

Since 6x - 6x cancels out, you are left with 12.

`?=12\\`