Question

Alberto uses the steps below to solve the equation One-half x minus 3 equals 7. Step 1: One-half x minus 3 plus 3 equals 7 plus 3 Step 2: One-half x plus 0 equals 10 Step 3: One-half x equals 0 Step 4: 2 (one-half) x equals 2 (10) Step 5: 1 x equals 20 Step 6: x equals 20 Which justifies Step 6 of his work?

Answer 1

x = 20

Step-by-step explanation:

Alberto solved the equation by using some steps. The equation is :

                 $\frac{1}{2}x-3=7$

Step 1.      $\frac{1}{2}x-3+3=7+3$

Step 2.     $\frac{1}{2}x+0=10$          

Step 3.     $\frac{1}{2}x=10$                        [Multiply both sides by 2]

Step 4.     $2\times (\frac{1}{2}x)=(2)\times (10)$

Step 5.     1x = 20

Step 6.     x = 20

Alberto used these steps above to solve the equation.

Learn more to solve other equation : https://brainly.in/question/7639599