What is the answer to 21+(x-8)=7(x+1) ?

The answer to 21+(x-8)=7(x+1) is x=1

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21+(x-8)=7(x+1)

21 + (x - 8) = 7 (x + 1)

x = 1

Solution steps

21 + (x - 8) = 7 (x + 1)

Remove parentheses:

(a) = a

21 + x - 8 = 7 (x + 1)

Group like terms

x + 21 - 8 = 7 (x + 1)

Add/Subtract the numbers:

21 - 8 = 13

x + 13 = 7 (x + 1)

Expand

7 (x + 1) : 7 x + 7

x + 13 = 7 x + 7

Move

13

to the right side

x = 7 x - 6

Move

7 x

to the left side

- 6 x = - 6

Divide both sides by

- 6

x = 1

3 (x + 5) = 2 x + 35

\frac{x}{- 4} - 29 = 7

\frac{3 j + k}{2} = 15 - 4 k

2 (p + 4) = 7 p + 2

1 - (4 + x) = - 2