40-7ab+3b+12from 12a-9ab+5b-3
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Answered by
0
Step-by-step explanation:
1. 40-7ab+3b+12from 12a-9ab+5b-3
= 12a-9ab+5b-3 - (40-7ab+3b+12)
= 12a-9ab+5b-3-40+7ab+3b+12
= 12a-9ab+7ab+5b+3b-3-40+12
= 12a-2ab+8b-31 ✓
Answered by
0
Answer:
40-7ab+3b+12+40
-7ab+3b+12+40
-7ab+3b+52=0
-7ab+3b=-52-----------------------(i)
12a-9ab+5b-3
12a+5b-9ab-3=0
12a+5b-9ab=3------------------(ii)
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