7x+x+21=61

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Solution for 7x+x+21=61 equation:


Simplifying
7x + x + 21 = 61

Reorder the terms:
21 + 7x + x = 61

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

Solving
21 + 8x = 61

Solving for variable 'x'.

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

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

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

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

Divide each side by '8'.
x = 5

Simplifying
x = 5

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