7x-3(x+5)-10=15

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Solution for 7x-3(x+5)-10=15 equation:


Simplifying
7x + -3(x + 5) + -10 = 15

Reorder the terms:
7x + -3(5 + x) + -10 = 15
7x + (5 * -3 + x * -3) + -10 = 15
7x + (-15 + -3x) + -10 = 15

Reorder the terms:
-15 + -10 + 7x + -3x = 15

Combine like terms: -15 + -10 = -25
-25 + 7x + -3x = 15

Combine like terms: 7x + -3x = 4x
-25 + 4x = 15

Solving
-25 + 4x = 15

Solving for variable 'x'.

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

Add '25' to each side of the equation.
-25 + 25 + 4x = 15 + 25

Combine like terms: -25 + 25 = 0
0 + 4x = 15 + 25
4x = 15 + 25

Combine like terms: 15 + 25 = 40
4x = 40

Divide each side by '4'.
x = 10

Simplifying
x = 10

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