2x+3+x-4=45

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Solution for 2x+3+x-4=45 equation:


Simplifying
2x + 3 + x + -4 = 45

Reorder the terms:
3 + -4 + 2x + x = 45

Combine like terms: 3 + -4 = -1
-1 + 2x + x = 45

Combine like terms: 2x + x = 3x
-1 + 3x = 45

Solving
-1 + 3x = 45

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 3x = 45 + 1

Combine like terms: -1 + 1 = 0
0 + 3x = 45 + 1
3x = 45 + 1

Combine like terms: 45 + 1 = 46
3x = 46

Divide each side by '3'.
x = 15.33333333

Simplifying
x = 15.33333333

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