4(x-3)+4=21

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Solution for 4(x-3)+4=21 equation: 


Simplifying
4(x + -3) + 4 = 21

Reorder the terms:
4(-3 + x) + 4 = 21
(-3 * 4 + x * 4) + 4 = 21
(-12 + 4x) + 4 = 21

Reorder the terms:
-12 + 4 + 4x = 21

Combine like terms: -12 + 4 = -8
-8 + 4x = 21

Solving
-8 + 4x = 21

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 4x = 21 + 8

Combine like terms: -8 + 8 = 0
0 + 4x = 21 + 8
4x = 21 + 8

Combine like terms: 21 + 8 = 29
4x = 29

Divide each side by '4'.
x = 7.25

Simplifying
x = 7.25

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