Respuesta :

Answer:

1

Step-by-step explanation:

7 + 2x = 9

Carry over the 7 to the 9.

2x = 9-7

2x= 2

x = 2÷2

x = 1

Answer: x = 1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2x+7=9

Step 2: Subtract 7 from both sides.

2x+7−7=9−7

2x=2

Step 3: Divide both sides by 2.

2x/2 = 2/2 = 1