3x+4x-9=47

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Solution for 3x+4x-9=47 equation: 


Simplifying
3x + 4x + -9 = 47

Reorder the terms:
-9 + 3x + 4x = 47

Combine like terms: 3x + 4x = 7x
-9 + 7x = 47

Solving
-9 + 7x = 47

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 = 47 + 9

Combine like terms: -9 + 9 = 0
0 + 7x = 47 + 9
7x = 47 + 9

Combine like terms: 47 + 9 = 56
7x = 56

Divide each side by '7'.
x = 8

Simplifying
x = 8

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