4(x-5)=x+21

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Solution for 4(x-5)=x+21 equation:


Simplifying
4(x + -5) = x + 21

Reorder the terms:
4(-5 + x) = x + 21
(-5 * 4 + x * 4) = x + 21
(-20 + 4x) = x + 21

Reorder the terms:
-20 + 4x = 21 + x

Solving
-20 + 4x = 21 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-20 + 4x + -1x = 21 + x + -1x

Combine like terms: 4x + -1x = 3x
-20 + 3x = 21 + x + -1x

Combine like terms: x + -1x = 0
-20 + 3x = 21 + 0
-20 + 3x = 21

Add '20' to each side of the equation.
-20 + 20 + 3x = 21 + 20

Combine like terms: -20 + 20 = 0
0 + 3x = 21 + 20
3x = 21 + 20

Combine like terms: 21 + 20 = 41
3x = 41

Divide each side by '3'.
x = 13.66666667

Simplifying
x = 13.66666667

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