7x+3(3x+15)=125

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Solution for 7x+3(3x+15)=125 equation:


Simplifying
7x + 3(3x + 15) = 125

Reorder the terms:
7x + 3(15 + 3x) = 125
7x + (15 * 3 + 3x * 3) = 125
7x + (45 + 9x) = 125

Reorder the terms:
45 + 7x + 9x = 125

Combine like terms: 7x + 9x = 16x
45 + 16x = 125

Solving
45 + 16x = 125

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + 16x = 125 + -45

Combine like terms: 45 + -45 = 0
0 + 16x = 125 + -45
16x = 125 + -45

Combine like terms: 125 + -45 = 80
16x = 80

Divide each side by '16'.
x = 5

Simplifying
x = 5

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