4(x-5)=21

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


Simplifying
4(x + -5) = 21

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

Solving
-20 + 4x = 21

Solving for variable 'x'.

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

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

Combine like terms: -20 + 20 = 0
0 + 4x = 21 + 20
4x = 21 + 20

Combine like terms: 21 + 20 = 41
4x = 41

Divide each side by '4'.
x = 10.25

Simplifying
x = 10.25

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