6(x-1)-2(x-3)=42x-21(2x-4)

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Solution for 6(x-1)-2(x-3)=42x-21(2x-4) equation:


Simplifying
6(x + -1) + -2(x + -3) = 42x + -21(2x + -4)

Reorder the terms:
6(-1 + x) + -2(x + -3) = 42x + -21(2x + -4)
(-1 * 6 + x * 6) + -2(x + -3) = 42x + -21(2x + -4)
(-6 + 6x) + -2(x + -3) = 42x + -21(2x + -4)

Reorder the terms:
-6 + 6x + -2(-3 + x) = 42x + -21(2x + -4)
-6 + 6x + (-3 * -2 + x * -2) = 42x + -21(2x + -4)
-6 + 6x + (6 + -2x) = 42x + -21(2x + -4)

Reorder the terms:
-6 + 6 + 6x + -2x = 42x + -21(2x + -4)

Combine like terms: -6 + 6 = 0
0 + 6x + -2x = 42x + -21(2x + -4)
6x + -2x = 42x + -21(2x + -4)

Combine like terms: 6x + -2x = 4x
4x = 42x + -21(2x + -4)

Reorder the terms:
4x = 42x + -21(-4 + 2x)
4x = 42x + (-4 * -21 + 2x * -21)
4x = 42x + (84 + -42x)

Reorder the terms:
4x = 84 + 42x + -42x

Combine like terms: 42x + -42x = 0
4x = 84 + 0
4x = 84

Solving
4x = 84

Solving for variable 'x'.

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

Divide each side by '4'.
x = 21

Simplifying
x = 21

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