Math, asked by avantika0223, 1 year ago

3a-(a+4)+2(2a-9)a=13

Answers

Answered by imadullaimad

0

Answer:

3a-(a+4)+2(2a-9)a=13

3a+2a -9+4 -2a =13

3a+2a-2a+9+4 =13

3a+(-9+4)=13

3a+(-5)=13

3a-5=13

3a=13+5

3a=18

a=18-3

a=15

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