Question

How to solve it?? b-2c=7,2b+c=4

Answer 1

Step-by-step explanation:

hence b=5 and c=-9\5.tell me even if it is wrong or right

Answer 2

Answer:

b-2c=7 (×1) >eqn 1

2b+c=4(×2)>eqn 2

b-2c=7 >eqn 3

4b+2c=8> eqn 4

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5b=15

b=15/5

b=3

b-2c=7

3-2c=7

2c=3-7

2c= -4

c= -4/2

c= -2