X+45-(3*X+30)=0

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Solution for X+45-(3*X+30)=0 equation:


Simplifying
X + 45 + -1(3X + 30) = 0

Reorder the terms:
X + 45 + -1(30 + 3X) = 0
X + 45 + (30 * -1 + 3X * -1) = 0
X + 45 + (-30 + -3X) = 0

Reorder the terms:
45 + -30 + X + -3X = 0

Combine like terms: 45 + -30 = 15
15 + X + -3X = 0

Combine like terms: X + -3X = -2X
15 + -2X = 0

Solving
15 + -2X = 0

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 + -2X = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -2X = 0 + -15
-2X = 0 + -15

Combine like terms: 0 + -15 = -15
-2X = -15

Divide each side by '-2'.
X = 7.5

Simplifying
X = 7.5

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