7x+74=9(3+x)-15

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Solution for 7x+74=9(3+x)-15 equation:


Simplifying
7x + 74 = 9(3 + x) + -15

Reorder the terms:
74 + 7x = 9(3 + x) + -15
74 + 7x = (3 * 9 + x * 9) + -15
74 + 7x = (27 + 9x) + -15

Reorder the terms:
74 + 7x = 27 + -15 + 9x

Combine like terms: 27 + -15 = 12
74 + 7x = 12 + 9x

Solving
74 + 7x = 12 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
74 + 7x + -9x = 12 + 9x + -9x

Combine like terms: 7x + -9x = -2x
74 + -2x = 12 + 9x + -9x

Combine like terms: 9x + -9x = 0
74 + -2x = 12 + 0
74 + -2x = 12

Add '-74' to each side of the equation.
74 + -74 + -2x = 12 + -74

Combine like terms: 74 + -74 = 0
0 + -2x = 12 + -74
-2x = 12 + -74

Combine like terms: 12 + -74 = -62
-2x = -62

Divide each side by '-2'.
x = 31

Simplifying
x = 31

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