8x+12(x-3)=100

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Solution for 8x+12(x-3)=100 equation:


Simplifying
8x + 12(x + -3) = 100

Reorder the terms:
8x + 12(-3 + x) = 100
8x + (-3 * 12 + x * 12) = 100
8x + (-36 + 12x) = 100

Reorder the terms:
-36 + 8x + 12x = 100

Combine like terms: 8x + 12x = 20x
-36 + 20x = 100

Solving
-36 + 20x = 100

Solving for variable 'x'.

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

Add '36' to each side of the equation.
-36 + 36 + 20x = 100 + 36

Combine like terms: -36 + 36 = 0
0 + 20x = 100 + 36
20x = 100 + 36

Combine like terms: 100 + 36 = 136
20x = 136

Divide each side by '20'.
x = 6.8

Simplifying
x = 6.8

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