21x+6(4x+2)=-6

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Solution for 21x+6(4x+2)=-6 equation:


Simplifying
21x + 6(4x + 2) = -6

Reorder the terms:
21x + 6(2 + 4x) = -6
21x + (2 * 6 + 4x * 6) = -6
21x + (12 + 24x) = -6

Reorder the terms:
12 + 21x + 24x = -6

Combine like terms: 21x + 24x = 45x
12 + 45x = -6

Solving
12 + 45x = -6

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 + 45x = -6 + -12

Combine like terms: 12 + -12 = 0
0 + 45x = -6 + -12
45x = -6 + -12

Combine like terms: -6 + -12 = -18
45x = -18

Divide each side by '45'.
x = -0.4

Simplifying
x = -0.4

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