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Oxana [17]
3 years ago
11

15-a=20 what value would make this true

Mathematics
2 answers:
STALIN [3.7K]3 years ago
6 0

Answer:

-5

Step-by-step explanation:

15-(-5)=20

5 turns into a positive

15+5=20

sergejj [24]3 years ago
5 0

Answer:

a = -5

Step-by-step explanation:

15 - a = 20

Move the constant of 15 to the other side by subtracting it.

-a = 5

Divide by -1 to make a positive.

a = -5

Check.

15 - (-5) = 20

15 + 5 = 20

20 = 20

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