15-a=20 what value would make this true
2 answers:
Answer:
-5
Step-by-step explanation:
15-(-5)=20
5 turns into a positive
15+5=20
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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