20x+15x-20(x-1)+15(x-1)=245

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Solution for 20x+15x-20(x-1)+15(x-1)=245 equation:


Simplifying
20x + 15x + -20(x + -1) + 15(x + -1) = 245

Reorder the terms:
20x + 15x + -20(-1 + x) + 15(x + -1) = 245
20x + 15x + (-1 * -20 + x * -20) + 15(x + -1) = 245
20x + 15x + (20 + -20x) + 15(x + -1) = 245

Reorder the terms:
20x + 15x + 20 + -20x + 15(-1 + x) = 245
20x + 15x + 20 + -20x + (-1 * 15 + x * 15) = 245
20x + 15x + 20 + -20x + (-15 + 15x) = 245

Reorder the terms:
20 + -15 + 20x + 15x + -20x + 15x = 245

Combine like terms: 20 + -15 = 5
5 + 20x + 15x + -20x + 15x = 245

Combine like terms: 20x + 15x = 35x
5 + 35x + -20x + 15x = 245

Combine like terms: 35x + -20x = 15x
5 + 15x + 15x = 245

Combine like terms: 15x + 15x = 30x
5 + 30x = 245

Solving
5 + 30x = 245

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 + 30x = 245 + -5

Combine like terms: 5 + -5 = 0
0 + 30x = 245 + -5
30x = 245 + -5

Combine like terms: 245 + -5 = 240
30x = 240

Divide each side by '30'.
x = 8

Simplifying
x = 8

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