2x+5x-4=45

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Solution for 2x+5x-4=45 equation: 


Simplifying
2x + 5x + -4 = 45

Reorder the terms:
-4 + 2x + 5x = 45

Combine like terms: 2x + 5x = 7x
-4 + 7x = 45

Solving
-4 + 7x = 45

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 7x = 45 + 4

Combine like terms: -4 + 4 = 0
0 + 7x = 45 + 4
7x = 45 + 4

Combine like terms: 45 + 4 = 49
7x = 49

Divide each side by '7'.
x = 7

Simplifying
x = 7

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