4(3x+5)=21

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Solution for 4(3x+5)=21 equation:


Simplifying
4(3x + 5) = 21

Reorder the terms:
4(5 + 3x) = 21
(5 * 4 + 3x * 4) = 21
(20 + 12x) = 21

Solving
20 + 12x = 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 + 12x = 21 + -20

Combine like terms: 20 + -20 = 0
0 + 12x = 21 + -20
12x = 21 + -20

Combine like terms: 21 + -20 = 1
12x = 1

Divide each side by '12'.
x = 0.08333333333

Simplifying
x = 0.08333333333

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