3(15+x)+3x=345

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Solution for 3(15+x)+3x=345 equation:


Simplifying
3(15 + x) + 3x = 345
(15 * 3 + x * 3) + 3x = 345
(45 + 3x) + 3x = 345

Combine like terms: 3x + 3x = 6x
45 + 6x = 345

Solving
45 + 6x = 345

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 + 6x = 345 + -45

Combine like terms: 45 + -45 = 0
0 + 6x = 345 + -45
6x = 345 + -45

Combine like terms: 345 + -45 = 300
6x = 300

Divide each side by '6'.
x = 50

Simplifying
x = 50

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