78+x=121+4

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Solution for 78+x=121+4 equation: 


Simplifying
78 + x = 121 + 4

Combine like terms: 121 + 4 = 125
78 + x = 125

Solving
78 + x = 125

Solving for variable 'x'.

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

Add '-78' to each side of the equation.
78 + -78 + x = 125 + -78

Combine like terms: 78 + -78 = 0
0 + x = 125 + -78
x = 125 + -78

Combine like terms: 125 + -78 = 47
x = 47

Simplifying
x = 47

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