720=120+97+130+150+90+x

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Solution for 720=120+97+130+150+90+x equation:


Simplifying
720 = 120 + 97 + 130 + 150 + 90 + x

Combine like terms: 120 + 97 = 217
720 = 217 + 130 + 150 + 90 + x

Combine like terms: 217 + 130 = 347
720 = 347 + 150 + 90 + x

Combine like terms: 347 + 150 = 497
720 = 497 + 90 + x

Combine like terms: 497 + 90 = 587
720 = 587 + x

Solving
720 = 587 + 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.
720 + -1x = 587 + x + -1x

Combine like terms: x + -1x = 0
720 + -1x = 587 + 0
720 + -1x = 587

Add '-720' to each side of the equation.
720 + -720 + -1x = 587 + -720

Combine like terms: 720 + -720 = 0
0 + -1x = 587 + -720
-1x = 587 + -720

Combine like terms: 587 + -720 = -133
-1x = -133

Divide each side by '-1'.
x = 133

Simplifying
x = 133

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