4(3x-10)+8(x-20)=-20

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Solution for 4(3x-10)+8(x-20)=-20 equation:


Simplifying
4(3x + -10) + 8(x + -20) = -20

Reorder the terms:
4(-10 + 3x) + 8(x + -20) = -20
(-10 * 4 + 3x * 4) + 8(x + -20) = -20
(-40 + 12x) + 8(x + -20) = -20

Reorder the terms:
-40 + 12x + 8(-20 + x) = -20
-40 + 12x + (-20 * 8 + x * 8) = -20
-40 + 12x + (-160 + 8x) = -20

Reorder the terms:
-40 + -160 + 12x + 8x = -20

Combine like terms: -40 + -160 = -200
-200 + 12x + 8x = -20

Combine like terms: 12x + 8x = 20x
-200 + 20x = -20

Solving
-200 + 20x = -20

Solving for variable 'x'.

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

Add '200' to each side of the equation.
-200 + 200 + 20x = -20 + 200

Combine like terms: -200 + 200 = 0
0 + 20x = -20 + 200
20x = -20 + 200

Combine like terms: -20 + 200 = 180
20x = 180

Divide each side by '20'.
x = 9

Simplifying
x = 9

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