Question

How to do 2x+4=12 plz show how you got it

Answer 1

2x + 4 = 12

We're simply just trying to isolate x.

So, we must get x onto it's own side of the equal sign :)

Our first step is to subtract 4 from both sides.

2x + 4 - 4 = 12 - 4

Simplify.

2x = 8

Then, we divide both sides by 2.

2x ÷ 2 = 8 ÷ 2 

Simplify.

x = 4

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To check your work, simply plug in the value of x into x in the original equation.

In this problem, x = 4, so plug in 4 for x.

2x + 4 = 12

2(4) + 4 = 12

Simplify.

8 + 4 = 12

12 = 12

Therefore, x = 4

~Hope I helped!~

Answer 2

First you subtract 4 from both sides.
$2x+4-4=12-4$
Simplify
$2x=8$
Divide both sides by 2 
$\frac{2x}{2}$ and $\frac{8}{2}$

Final answer ${x=4}$