-4(3x-3)+9(x+1)=21x-2

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Solution for -4(3x-3)+9(x+1)=21x-2 equation:


Simplifying
-4(3x + -3) + 9(x + 1) = 21x + -2

Reorder the terms:
-4(-3 + 3x) + 9(x + 1) = 21x + -2
(-3 * -4 + 3x * -4) + 9(x + 1) = 21x + -2
(12 + -12x) + 9(x + 1) = 21x + -2

Reorder the terms:
12 + -12x + 9(1 + x) = 21x + -2
12 + -12x + (1 * 9 + x * 9) = 21x + -2
12 + -12x + (9 + 9x) = 21x + -2

Reorder the terms:
12 + 9 + -12x + 9x = 21x + -2

Combine like terms: 12 + 9 = 21
21 + -12x + 9x = 21x + -2

Combine like terms: -12x + 9x = -3x
21 + -3x = 21x + -2

Reorder the terms:
21 + -3x = -2 + 21x

Solving
21 + -3x = -2 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
21 + -3x + -21x = -2 + 21x + -21x

Combine like terms: -3x + -21x = -24x
21 + -24x = -2 + 21x + -21x

Combine like terms: 21x + -21x = 0
21 + -24x = -2 + 0
21 + -24x = -2

Add '-21' to each side of the equation.
21 + -21 + -24x = -2 + -21

Combine like terms: 21 + -21 = 0
0 + -24x = -2 + -21
-24x = -2 + -21

Combine like terms: -2 + -21 = -23
-24x = -23

Divide each side by '-24'.
x = 0.9583333333

Simplifying
x = 0.9583333333

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