20a - ½ ( 20 a) = 400 - 200-100 plz solve this step by step. i will mark u the brainliest.
Answers
Answered by
1
Answer:
10
Step-by-step explanation:
20a-1/2(20a)=100
20a-10a=100
10a=100
a=10
Answered by
1
Answer:
a = 10
Step-by-step explanation:
20a - 10a = 10 a
= 400 - 200 - 100 = 100
therefore, 10 a = 100
so, a = 100/10 = 10
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