5x+7(78-x)=442

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Solution for 5x+7(78-x)=442 equation:


Simplifying
5x + 7(78 + -1x) = 442
5x + (78 * 7 + -1x * 7) = 442
5x + (546 + -7x) = 442

Reorder the terms:
546 + 5x + -7x = 442

Combine like terms: 5x + -7x = -2x
546 + -2x = 442

Solving
546 + -2x = 442

Solving for variable 'x'.

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

Add '-546' to each side of the equation.
546 + -546 + -2x = 442 + -546

Combine like terms: 546 + -546 = 0
0 + -2x = 442 + -546
-2x = 442 + -546

Combine like terms: 442 + -546 = -104
-2x = -104

Divide each side by '-2'.
x = 52

Simplifying
x = 52

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