3x+5+4x=40

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Solution for 3x+5+4x=40 equation: 


Simplifying
3x + 5 + 4x = 40

Reorder the terms:
5 + 3x + 4x = 40

Combine like terms: 3x + 4x = 7x
5 + 7x = 40

Solving
5 + 7x = 40

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 7x = 40 + -5

Combine like terms: 5 + -5 = 0
0 + 7x = 40 + -5
7x = 40 + -5

Combine like terms: 40 + -5 = 35
7x = 35

Divide each side by '7'.
x = 5

Simplifying
x = 5

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