7x-(2x+5)=40

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Solution for 7x-(2x+5)=40 equation:


Simplifying
7x + -1(2x + 5) = 40

Reorder the terms:
7x + -1(5 + 2x) = 40
7x + (5 * -1 + 2x * -1) = 40
7x + (-5 + -2x) = 40

Reorder the terms:
-5 + 7x + -2x = 40

Combine like terms: 7x + -2x = 5x
-5 + 5x = 40

Solving
-5 + 5x = 40

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 5x = 40 + 5

Combine like terms: -5 + 5 = 0
0 + 5x = 40 + 5
5x = 40 + 5

Combine like terms: 40 + 5 = 45
5x = 45

Divide each side by '5'.
x = 9

Simplifying
x = 9

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