7x+21=147

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Solution for 7x+21=147 equation: 


Simplifying
7x + 21 = 147

Reorder the terms:
21 + 7x = 147

Solving
21 + 7x = 147

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 + 7x = 147 + -21

Combine like terms: 21 + -21 = 0
0 + 7x = 147 + -21
7x = 147 + -21

Combine like terms: 147 + -21 = 126
7x = 126

Divide each side by '7'.
x = 18

Simplifying
x = 18

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