Question

2(x+3)=20
what does this equal??

Answer 1

13

Explanation:

Answer 2

x= 7

Explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation

2*(x+3)-(20)=0

STEP

1

:

Equation at the end of step 1

2 • (x + 3) - 20 = 0

STEP

2

:

STEP

3

:

Pulling out like terms

3.1 Pull out like factors :

2x - 14 = 2 • (x - 7)

Equation at the end of step

3

:

2 • (x - 7) = 0

STEP

4

:

Equations which are never true:

4.1 Solve : 2 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

4.2 Solve : x-7 = 0

Add 7 to both sides of the equation :

x = 7