3x+4(7x-15)=126

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Solution for 3x+4(7x-15)=126 equation:


Simplifying
3x + 4(7x + -15) = 126

Reorder the terms:
3x + 4(-15 + 7x) = 126
3x + (-15 * 4 + 7x * 4) = 126
3x + (-60 + 28x) = 126

Reorder the terms:
-60 + 3x + 28x = 126

Combine like terms: 3x + 28x = 31x
-60 + 31x = 126

Solving
-60 + 31x = 126

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 31x = 126 + 60

Combine like terms: -60 + 60 = 0
0 + 31x = 126 + 60
31x = 126 + 60

Combine like terms: 126 + 60 = 186
31x = 186

Divide each side by '31'.
x = 6

Simplifying
x = 6

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