8x-21=x+49

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Solution for 8x-21=x+49 equation:


Simplifying
8x + -21 = x + 49

Reorder the terms:
-21 + 8x = x + 49

Reorder the terms:
-21 + 8x = 49 + x

Solving
-21 + 8x = 49 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-21 + 8x + -1x = 49 + x + -1x

Combine like terms: 8x + -1x = 7x
-21 + 7x = 49 + x + -1x

Combine like terms: x + -1x = 0
-21 + 7x = 49 + 0
-21 + 7x = 49

Add '21' to each side of the equation.
-21 + 21 + 7x = 49 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 49 + 21
7x = 49 + 21

Combine like terms: 49 + 21 = 70
7x = 70

Divide each side by '7'.
x = 10

Simplifying
x = 10

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