Question

2x + 9
2x + 7
2x + 7
2x + 9​

Answer 1

Simplifying

2x + 7 = 2x + 9

Reorder the terms:

7 + 2x = 2x + 9

Reorder the terms:

7 + 2x = 9 + 2x

Add '-2x' to each side of the equation.

7 + 2x + -2x = 9 + 2x + -2x

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

7 + 0 = 9 + 2x + -2x

7 = 9 + 2x + -2x

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

7 = 9 + 0

7 = 9

Solving

7 = 9

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Thanks you :-)