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

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


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

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

Reorder the terms:
-3 + 2x + -12x = 21

Combine like terms: 2x + -12x = -10x
-3 + -10x = 21

Solving
-3 + -10x = 21

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -10x = 21 + 3

Combine like terms: -3 + 3 = 0
0 + -10x = 21 + 3
-10x = 21 + 3

Combine like terms: 21 + 3 = 24
-10x = 24

Divide each side by '-10'.
x = -2.4

Simplifying
x = -2.4

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