8x-7+18=21

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Solution for 8x-7+18=21 equation:


Simplifying
8x + -7 + 18 = 21

Reorder the terms:
-7 + 18 + 8x = 21

Combine like terms: -7 + 18 = 11
11 + 8x = 21

Solving
11 + 8x = 21

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + 8x = 21 + -11

Combine like terms: 11 + -11 = 0
0 + 8x = 21 + -11
8x = 21 + -11

Combine like terms: 21 + -11 = 10
8x = 10

Divide each side by '8'.
x = 1.25

Simplifying
x = 1.25

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