10x+20(x-4)=310

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Solution for 10x+20(x-4)=310 equation:


Simplifying
10x + 20(x + -4) = 310

Reorder the terms:
10x + 20(-4 + x) = 310
10x + (-4 * 20 + x * 20) = 310
10x + (-80 + 20x) = 310

Reorder the terms:
-80 + 10x + 20x = 310

Combine like terms: 10x + 20x = 30x
-80 + 30x = 310

Solving
-80 + 30x = 310

Solving for variable 'x'.

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

Add '80' to each side of the equation.
-80 + 80 + 30x = 310 + 80

Combine like terms: -80 + 80 = 0
0 + 30x = 310 + 80
30x = 310 + 80

Combine like terms: 310 + 80 = 390
30x = 390

Divide each side by '30'.
x = 13

Simplifying
x = 13

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