5(3x+5)-4(x+7)=140

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Solution for 5(3x+5)-4(x+7)=140 equation:


Simplifying
5(3x + 5) + -4(x + 7) = 140

Reorder the terms:
5(5 + 3x) + -4(x + 7) = 140
(5 * 5 + 3x * 5) + -4(x + 7) = 140
(25 + 15x) + -4(x + 7) = 140

Reorder the terms:
25 + 15x + -4(7 + x) = 140
25 + 15x + (7 * -4 + x * -4) = 140
25 + 15x + (-28 + -4x) = 140

Reorder the terms:
25 + -28 + 15x + -4x = 140

Combine like terms: 25 + -28 = -3
-3 + 15x + -4x = 140

Combine like terms: 15x + -4x = 11x
-3 + 11x = 140

Solving
-3 + 11x = 140

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 11x = 140 + 3

Combine like terms: -3 + 3 = 0
0 + 11x = 140 + 3
11x = 140 + 3

Combine like terms: 140 + 3 = 143
11x = 143

Divide each side by '11'.
x = 13

Simplifying
x = 13

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