30-60(2x-1)=20(3x+10)-7(30x-70)

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Solution for 30-60(2x-1)=20(3x+10)-7(30x-70) equation:


Simplifying
30 + -60(2x + -1) = 20(3x + 10) + -7(30x + -70)

Reorder the terms:
30 + -60(-1 + 2x) = 20(3x + 10) + -7(30x + -70)
30 + (-1 * -60 + 2x * -60) = 20(3x + 10) + -7(30x + -70)
30 + (60 + -120x) = 20(3x + 10) + -7(30x + -70)

Combine like terms: 30 + 60 = 90
90 + -120x = 20(3x + 10) + -7(30x + -70)

Reorder the terms:
90 + -120x = 20(10 + 3x) + -7(30x + -70)
90 + -120x = (10 * 20 + 3x * 20) + -7(30x + -70)
90 + -120x = (200 + 60x) + -7(30x + -70)

Reorder the terms:
90 + -120x = 200 + 60x + -7(-70 + 30x)
90 + -120x = 200 + 60x + (-70 * -7 + 30x * -7)
90 + -120x = 200 + 60x + (490 + -210x)

Reorder the terms:
90 + -120x = 200 + 490 + 60x + -210x

Combine like terms: 200 + 490 = 690
90 + -120x = 690 + 60x + -210x

Combine like terms: 60x + -210x = -150x
90 + -120x = 690 + -150x

Solving
90 + -120x = 690 + -150x

Solving for variable 'x'.

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

Add '150x' to each side of the equation.
90 + -120x + 150x = 690 + -150x + 150x

Combine like terms: -120x + 150x = 30x
90 + 30x = 690 + -150x + 150x

Combine like terms: -150x + 150x = 0
90 + 30x = 690 + 0
90 + 30x = 690

Add '-90' to each side of the equation.
90 + -90 + 30x = 690 + -90

Combine like terms: 90 + -90 = 0
0 + 30x = 690 + -90
30x = 690 + -90

Combine like terms: 690 + -90 = 600
30x = 600

Divide each side by '30'.
x = 20

Simplifying
x = 20

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