Sum of 2a + b + 3 and a – 2b – 4 is ?
Answers
Answered by
7
Answer:
3a-b-1
Step-by-step explanation:
(2a+b+3)+(a-2b-4)
=(2a+a)+(b-2b)+(3-4)
=3a+(-b)+(-1)
=3a-b-1
Answered by
3
Answer:
a+3b+7
Step-by-step explanation:
2a + b + 3 = a – 2b – 4
solve, (note sign changes when bringing a number to the other side) e.g +3 to -3 from the solution
2a - a + b +2b = -4 - 3
a + 3b = -7
∴ a + 3b + 7 = 0
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