(-5x+49)+(7x+31)=90

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Solution for (-5x+49)+(7x+31)=90 equation:


Simplifying
(-5x + 49) + (7x + 31) = 90

Reorder the terms:
(49 + -5x) + (7x + 31) = 90

Remove parenthesis around (49 + -5x)
49 + -5x + (7x + 31) = 90

Reorder the terms:
49 + -5x + (31 + 7x) = 90

Remove parenthesis around (31 + 7x)
49 + -5x + 31 + 7x = 90

Reorder the terms:
49 + 31 + -5x + 7x = 90

Combine like terms: 49 + 31 = 80
80 + -5x + 7x = 90

Combine like terms: -5x + 7x = 2x
80 + 2x = 90

Solving
80 + 2x = 90

Solving for variable 'x'.

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

Add '-80' to each side of the equation.
80 + -80 + 2x = 90 + -80

Combine like terms: 80 + -80 = 0
0 + 2x = 90 + -80
2x = 90 + -80

Combine like terms: 90 + -80 = 10
2x = 10

Divide each side by '2'.
x = 5

Simplifying
x = 5

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