7x-21=(3-8x)

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Solution for 7x-21=(3-8x) equation:


Simplifying
7x + -21 = (3 + -8x)

Reorder the terms:
-21 + 7x = (3 + -8x)

Remove parenthesis around (3 + -8x)
-21 + 7x = 3 + -8x

Solving
-21 + 7x = 3 + -8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8x' to each side of the equation.
-21 + 7x + 8x = 3 + -8x + 8x

Combine like terms: 7x + 8x = 15x
-21 + 15x = 3 + -8x + 8x

Combine like terms: -8x + 8x = 0
-21 + 15x = 3 + 0
-21 + 15x = 3

Add '21' to each side of the equation.
-21 + 21 + 15x = 3 + 21

Combine like terms: -21 + 21 = 0
0 + 15x = 3 + 21
15x = 3 + 21

Combine like terms: 3 + 21 = 24
15x = 24

Divide each side by '15'.
x = 1.6

Simplifying
x = 1.6

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