x+3.5x-9+x+1.5x=75

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Solution for x+3.5x-9+x+1.5x=75 equation:


Simplifying
x + 3.5x + -9 + x + 1.5x = 75

Reorder the terms:
-9 + x + 3.5x + x + 1.5x = 75

Combine like terms: x + 3.5x = 4.5x
-9 + 4.5x + x + 1.5x = 75

Combine like terms: 4.5x + x = 5.5x
-9 + 5.5x + 1.5x = 75

Combine like terms: 5.5x + 1.5x = 7x
-9 + 7x = 75

Solving
-9 + 7x = 75

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 + 7x = 75 + 9

Combine like terms: -9 + 9 = 0
0 + 7x = 75 + 9
7x = 75 + 9

Combine like terms: 75 + 9 = 84
7x = 84

Divide each side by '7'.
x = 12

Simplifying
x = 12

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