if a= -1 b= -2 then find the value of:
2a-2b-4-5+a
answer is given: 3a-2b-9; -8
How?
Answers
Answered by
4
Step-by-step explanation:
2a-2b-4-5+a
= 2(-1)-2(-2)-4-5+(-1)
= -2+4-9-1
= 2-10
= -8
Hope this helps u...
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Answered by
2
Answer:
2a-2b-4-5+a
2a+a-2b-4-5
3a-2b-9
Step-by-step explanation:
LHS==== 2a-2b-4-5+a
= 2(-1)-2(-2)-4-5+(-1)
= -2+4-4-5-1
= -12+4
= -8
RHS ==== 3a-2b-9
= 3(-1)-2(-2)-9
= -3+4-9
= -12+4
= -8
thus LHS=RHS
Hope it helps you a lot
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