3x+2+x=7

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Solution for 3x+2+x=7 equation: 


Simplifying
3x + 2 + x = 7

Reorder the terms:
2 + 3x + x = 7

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

Solving
2 + 4x = 7

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 + 4x = 7 + -2

Combine like terms: 2 + -2 = 0
0 + 4x = 7 + -2
4x = 7 + -2

Combine like terms: 7 + -2 = 5
4x = 5

Divide each side by '4'.
x = 1.25

Simplifying
x = 1.25

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