3x-(7-2x)=6-21(1-2x)

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Solution for 3x-(7-2x)=6-21(1-2x) equation:


Simplifying
3x + -1(7 + -2x) = 6 + -21(1 + -2x)
3x + (7 * -1 + -2x * -1) = 6 + -21(1 + -2x)
3x + (-7 + 2x) = 6 + -21(1 + -2x)

Reorder the terms:
-7 + 3x + 2x = 6 + -21(1 + -2x)

Combine like terms: 3x + 2x = 5x
-7 + 5x = 6 + -21(1 + -2x)
-7 + 5x = 6 + (1 * -21 + -2x * -21)
-7 + 5x = 6 + (-21 + 42x)

Combine like terms: 6 + -21 = -15
-7 + 5x = -15 + 42x

Solving
-7 + 5x = -15 + 42x

Solving for variable 'x'.

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

Add '-42x' to each side of the equation.
-7 + 5x + -42x = -15 + 42x + -42x

Combine like terms: 5x + -42x = -37x
-7 + -37x = -15 + 42x + -42x

Combine like terms: 42x + -42x = 0
-7 + -37x = -15 + 0
-7 + -37x = -15

Add '7' to each side of the equation.
-7 + 7 + -37x = -15 + 7

Combine like terms: -7 + 7 = 0
0 + -37x = -15 + 7
-37x = -15 + 7

Combine like terms: -15 + 7 = -8
-37x = -8

Divide each side by '-37'.
x = 0.2162162162

Simplifying
x = 0.2162162162

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