Question

3x-7=x+5 simple equations
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Answer 1

3x-7=x+5

or, 3x-x=5+7

or, 2x=12

or, x=12/2

=6 Ans.

Answer 2

Step-by-step explanation:

Simplifying

3x + -7 = x + 5

Reorder the terms:

-7 + 3x = x + 5

Reorder the terms:

-7 + 3x = 5 + x

Solving

-7 + 3x = 5 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.

-7 + 3x + -1x = 5 + x + -1x

Combine like terms: 3x + -1x = 2x

-7 + 2x = 5 + x + -1x

Combine like terms: x + -1x = 0

-7 + 2x = 5 + 0

-7 + 2x = 5

Add '7' to each side of the equation.

-7 + 7 + 2x = 5 + 7

Combine like terms: -7 + 7 = 0

0 + 2x = 5 + 7

2x = 5 + 7

Combine like terms: 5 + 7 = 12

2x = 12

Divide each side by '2'.

x = 6

Simplifying

x = 6