1-7x+6=21

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Solution for 1-7x+6=21 equation:


Simplifying
1 + -7x + 6 = 21

Reorder the terms:
1 + 6 + -7x = 21

Combine like terms: 1 + 6 = 7
7 + -7x = 21

Solving
7 + -7x = 21

Solving for variable 'x'.

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

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

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

Combine like terms: 21 + -7 = 14
-7x = 14

Divide each side by '-7'.
x = -2

Simplifying
x = -2

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