3x+4x-4+6=66

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Solution for 3x+4x-4+6=66 equation:


Simplifying
3x + 4x + -4 + 6 = 66

Reorder the terms:
-4 + 6 + 3x + 4x = 66

Combine like terms: -4 + 6 = 2
2 + 3x + 4x = 66

Combine like terms: 3x + 4x = 7x
2 + 7x = 66

Solving
2 + 7x = 66

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 7x = 66 + -2

Combine like terms: 2 + -2 = 0
0 + 7x = 66 + -2
7x = 66 + -2

Combine like terms: 66 + -2 = 64
7x = 64

Divide each side by '7'.
x = 9.142857143

Simplifying
x = 9.142857143

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