3x+1+4x=85

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Solution for 3x+1+4x=85 equation: 


Simplifying
3x + 1 + 4x = 85

Reorder the terms:
1 + 3x + 4x = 85

Combine like terms: 3x + 4x = 7x
1 + 7x = 85

Solving
1 + 7x = 85

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 7x = 85 + -1

Combine like terms: 1 + -1 = 0
0 + 7x = 85 + -1
7x = 85 + -1

Combine like terms: 85 + -1 = 84
7x = 84

Divide each side by '7'.
x = 12

Simplifying
x = 12

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