54+8x+7=21

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Solution for 54+8x+7=21 equation:


Simplifying
54 + 8x + 7 = 21

Reorder the terms:
54 + 7 + 8x = 21

Combine like terms: 54 + 7 = 61
61 + 8x = 21

Solving
61 + 8x = 21

Solving for variable 'x'.

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

Add '-61' to each side of the equation.
61 + -61 + 8x = 21 + -61

Combine like terms: 61 + -61 = 0
0 + 8x = 21 + -61
8x = 21 + -61

Combine like terms: 21 + -61 = -40
8x = -40

Divide each side by '8'.
x = -5

Simplifying
x = -5

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