13x+3(x-4)=56

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Solution for 13x+3(x-4)=56 equation:


Simplifying
13x + 3(x + -4) = 56

Reorder the terms:
13x + 3(-4 + x) = 56
13x + (-4 * 3 + x * 3) = 56
13x + (-12 + 3x) = 56

Reorder the terms:
-12 + 13x + 3x = 56

Combine like terms: 13x + 3x = 16x
-12 + 16x = 56

Solving
-12 + 16x = 56

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 16x = 56 + 12

Combine like terms: -12 + 12 = 0
0 + 16x = 56 + 12
16x = 56 + 12

Combine like terms: 56 + 12 = 68
16x = 68

Divide each side by '16'.
x = 4.25

Simplifying
x = 4.25

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