7x-4(-2x-40)=250

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Solution for 7x-4(-2x-40)=250 equation:


Simplifying
7x + -4(-2x + -40) = 250

Reorder the terms:
7x + -4(-40 + -2x) = 250
7x + (-40 * -4 + -2x * -4) = 250
7x + (160 + 8x) = 250

Reorder the terms:
160 + 7x + 8x = 250

Combine like terms: 7x + 8x = 15x
160 + 15x = 250

Solving
160 + 15x = 250

Solving for variable 'x'.

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

Add '-160' to each side of the equation.
160 + -160 + 15x = 250 + -160

Combine like terms: 160 + -160 = 0
0 + 15x = 250 + -160
15x = 250 + -160

Combine like terms: 250 + -160 = 90
15x = 90

Divide each side by '15'.
x = 6

Simplifying
x = 6

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