Question

Alexis wrote 28 - 8 = 20. Then she

wrote 28 -8 + 9 = 20 – 9. Are her
equations balanced? Explain.

Answer 1

Her equation is not balanced.

Because 28 - 8 + 9 = 20 - 9

29 = 11 ( its not balanced)

She put the same symbol or sign on both side.Here she put different sign on both side .so this equation is not balanced.

Explanation:

Answer 2

no this is because 28-8+9=29 and 20-9=11

Explanation: