x+(4-x)+(x+9)=70

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Solution for x+(4-x)+(x+9)=70 equation:


Simplifying
x + (4 + -1x) + (x + 9) = 70

Remove parenthesis around (4 + -1x)
x + 4 + -1x + (x + 9) = 70

Reorder the terms:
x + 4 + -1x + (9 + x) = 70

Remove parenthesis around (9 + x)
x + 4 + -1x + 9 + x = 70

Reorder the terms:
4 + 9 + x + -1x + x = 70

Combine like terms: 4 + 9 = 13
13 + x + -1x + x = 70

Combine like terms: x + -1x = 0
13 + 0 + x = 70
13 + x = 70

Solving
13 + x = 70

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + x = 70 + -13

Combine like terms: 13 + -13 = 0
0 + x = 70 + -13
x = 70 + -13

Combine like terms: 70 + -13 = 57
x = 57

Simplifying
x = 57

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