7x+7(3x-15)=140

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Solution for 7x+7(3x-15)=140 equation:


Simplifying
7x + 7(3x + -15) = 140

Reorder the terms:
7x + 7(-15 + 3x) = 140
7x + (-15 * 7 + 3x * 7) = 140
7x + (-105 + 21x) = 140

Reorder the terms:
-105 + 7x + 21x = 140

Combine like terms: 7x + 21x = 28x
-105 + 28x = 140

Solving
-105 + 28x = 140

Solving for variable 'x'.

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

Add '105' to each side of the equation.
-105 + 105 + 28x = 140 + 105

Combine like terms: -105 + 105 = 0
0 + 28x = 140 + 105
28x = 140 + 105

Combine like terms: 140 + 105 = 245
28x = 245

Divide each side by '28'.
x = 8.75

Simplifying
x = 8.75

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