78=x-(-47)

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Solution for 78=x-(-47) equation:


Simplifying
78 = x + -1(-47)

Multiply -1 * -47
78 = x + 47

Reorder the terms:
78 = 47 + x

Solving
78 = 47 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
78 + -1x = 47 + x + -1x

Combine like terms: x + -1x = 0
78 + -1x = 47 + 0
78 + -1x = 47

Add '-78' to each side of the equation.
78 + -78 + -1x = 47 + -78

Combine like terms: 78 + -78 = 0
0 + -1x = 47 + -78
-1x = 47 + -78

Combine like terms: 47 + -78 = -31
-1x = -31

Divide each side by '-1'.
x = 31

Simplifying
x = 31

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