12+21=3(4x+6)

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Solution for 12+21=3(4x+6) equation:


Simplifying
12 + 21 = 3(4x + 6)

Combine like terms: 12 + 21 = 33
33 = 3(4x + 6)

Reorder the terms:
33 = 3(6 + 4x)
33 = (6 * 3 + 4x * 3)
33 = (18 + 12x)

Solving
33 = 18 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
33 + -12x = 18 + 12x + -12x

Combine like terms: 12x + -12x = 0
33 + -12x = 18 + 0
33 + -12x = 18

Add '-33' to each side of the equation.
33 + -33 + -12x = 18 + -33

Combine like terms: 33 + -33 = 0
0 + -12x = 18 + -33
-12x = 18 + -33

Combine like terms: 18 + -33 = -15
-12x = -15

Divide each side by '-12'.
x = 1.25

Simplifying
x = 1.25

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