Question

Solve this equations
$b + c = 0$
$a - 2b - c= 3$
$- 2b - c = - 1$
answerto this equation to be
$(a = \: \: \: 4 )(b = \: \:1 )(c = \: \: - 1 )$
solve in a detail way please

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Answer 1

Explanation:

$<font color=red>$to find :- $<font color=pink>$b+c =0

a -2b - c=3

-2b-c =-1

$<font color=red>$given :-$<font color=pink>$ a= 4 , b= 1, c= -1

$<font color=black>$solutions :-

$<font color=orange>$1 + (-1) =0

1-1= 0

0=0

$<font color=blue>$4-2×1-(-1)= 3

4-2+1=3

5-2=3

3=3

$<font color=green>$-2×1-(-1)= -1

-2+1 = -1

-1 = -1

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