Question

if a+2b=5 and c=3 find the value of a+2(b-c)​

Answer 1

Step-by-step explanation:

2a+b=4⟶(i)

a−2b=−3⟶(ii)

5c−d=11⟶(iii)

4c+3d=24⟶(iv)

2×(i)+(ii)

5a=5

a=1

a−2b=−3

2b=4

b=2

3×(iii)+(iv)

19c=57

c=3

5c−d=11

d=4

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