7x+4-3x=15

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Solution for 7x+4-3x=15 equation:


Simplifying
7x + 4 + -3x = 15

Reorder the terms:
4 + 7x + -3x = 15

Combine like terms: 7x + -3x = 4x
4 + 4x = 15

Solving
4 + 4x = 15

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 + 4x = 15 + -4

Combine like terms: 4 + -4 = 0
0 + 4x = 15 + -4
4x = 15 + -4

Combine like terms: 15 + -4 = 11
4x = 11

Divide each side by '4'.
x = 2.75

Simplifying
x = 2.75

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