7-4x+6=21

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Solution for 7-4x+6=21 equation:


Simplifying
7 + -4x + 6 = 21

Reorder the terms:
7 + 6 + -4x = 21

Combine like terms: 7 + 6 = 13
13 + -4x = 21

Solving
13 + -4x = 21

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + -4x = 21 + -13

Combine like terms: 13 + -13 = 0
0 + -4x = 21 + -13
-4x = 21 + -13

Combine like terms: 21 + -13 = 8
-4x = 8

Divide each side by '-4'.
x = -2

Simplifying
x = -2

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