4(2x+3)=21

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Solution for 4(2x+3)=21 equation: 


Simplifying
4(2x + 3) = 21

Reorder the terms:
4(3 + 2x) = 21
(3 * 4 + 2x * 4) = 21
(12 + 8x) = 21

Solving
12 + 8x = 21

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 8x = 21 + -12

Combine like terms: 12 + -12 = 0
0 + 8x = 21 + -12
8x = 21 + -12

Combine like terms: 21 + -12 = 9
8x = 9

Divide each side by '8'.
x = 1.125

Simplifying
x = 1.125

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