130=3x+4(1+x)

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Solution for 130=3x+4(1+x) equation:


Simplifying
130 = 3x + 4(1 + x)
130 = 3x + (1 * 4 + x * 4)
130 = 3x + (4 + 4x)

Reorder the terms:
130 = 4 + 3x + 4x

Combine like terms: 3x + 4x = 7x
130 = 4 + 7x

Solving
130 = 4 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
130 + -7x = 4 + 7x + -7x

Combine like terms: 7x + -7x = 0
130 + -7x = 4 + 0
130 + -7x = 4

Add '-130' to each side of the equation.
130 + -130 + -7x = 4 + -130

Combine like terms: 130 + -130 = 0
0 + -7x = 4 + -130
-7x = 4 + -130

Combine like terms: 4 + -130 = -126
-7x = -126

Divide each side by '-7'.
x = 18

Simplifying
x = 18

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