5925002134 5925002134

30-09-2020
Mathematics

contestada

The equation 9+3a-4-=?a+20-15 has infinitely many solutions. What value should be placed in the box?

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AngelM1971 AngelM1971

30-09-2020

Answer:

9 + 3a -4 - = a +20-15

3a - a = 20 -15+4-9

2a = 24 - 24

2a = 0

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