Question

Solve (x+21)=2(5x+21)

Answer 1

Answer:

(X+21)=10x+42

x-10x=42-21

9x=21

X=21/9

X=7/3

X=2.33

I hope it will help you

Answer 2

Answer:

= − 7 3

Step-by-step explanation:

How to solve your problem

(+21)=2(5+21)

(x+21)=2(5x+21)(x+21)=2(5x+21)

Solve

1

Eliminate redundant parentheses

(+21)=2(5+21)

(x+21)=2(5x+21)(x+21)=2(5x+21)

+21=2(5+21)

x+21=2(5x+21)x+21=2(5x+21)

2

Distribute

+21=2(5+21)

x+21={\color{#c92786}{2(5x+21)}}x+21=2(5x+21)

+21=10+423

Subtract 

21

2121

 from both sides of the equation

+21=10+42

x+21=10x+42x+21=10x+42

+21−21=10+42−21

x+21{\color{#c92786}{-21}}=10x+42{\color{#c92786}{-21}}x+21−21=10x+42−21

4

Simplify

Subtract the numbers

Subtract the numbers

=10+21

5

Subtract 

10

10x10x

 from both sides of the equation

=10+21

x=10x+21x=10x+21

−10=10+21−10

x{\color{#c92786}{-10x}}=10x+21{\color{#c92786}{-10x}}x−10x=10x+21−10x

6

Simplify

Combine like terms

Combine like terms

−9=21

7

Divide both sides of the equation by the same term

−9=21

-9x=21−9x=21

−9−9=21−9

\frac{-9x}{{\color{#c92786}{-9}}}=\frac{21}{{\color{#c92786}{-9}}}−9−9x=−921

8

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers