7x+9-5x=4

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Solution for 7x+9-5x=4 equation: 


Simplifying
7x + 9 + -5x = 4

Reorder the terms:
9 + 7x + -5x = 4

Combine like terms: 7x + -5x = 2x
9 + 2x = 4

Solving
9 + 2x = 4

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 2x = 4 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = 4 + -9
2x = 4 + -9

Combine like terms: 4 + -9 = -5
2x = -5

Divide each side by '2'.
x = -2.5

Simplifying
x = -2.5

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