2x+8+3x+7=30

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Solution for 2x+8+3x+7=30 equation:


Simplifying
2x + 8 + 3x + 7 = 30

Reorder the terms:
8 + 7 + 2x + 3x = 30

Combine like terms: 8 + 7 = 15
15 + 2x + 3x = 30

Combine like terms: 2x + 3x = 5x
15 + 5x = 30

Solving
15 + 5x = 30

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 5x = 30 + -15

Combine like terms: 15 + -15 = 0
0 + 5x = 30 + -15
5x = 30 + -15

Combine like terms: 30 + -15 = 15
5x = 15

Divide each side by '5'.
x = 3

Simplifying
x = 3

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