7x+3=9x-4

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Solution for 7x+3=9x-4 equation:


Simplifying
7x + 3 = 9x + -4

Reorder the terms:
3 + 7x = 9x + -4

Reorder the terms:
3 + 7x = -4 + 9x

Solving
3 + 7x = -4 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
3 + 7x + -9x = -4 + 9x + -9x

Combine like terms: 7x + -9x = -2x
3 + -2x = -4 + 9x + -9x

Combine like terms: 9x + -9x = 0
3 + -2x = -4 + 0
3 + -2x = -4

Add '-3' to each side of the equation.
3 + -3 + -2x = -4 + -3

Combine like terms: 3 + -3 = 0
0 + -2x = -4 + -3
-2x = -4 + -3

Combine like terms: -4 + -3 = -7
-2x = -7

Divide each side by '-2'.
x = 3.5

Simplifying
x = 3.5

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