Question

x= -12 is the solution of the linear equation 5x-3(2x+1)=21+x

Answer 1

solve

x=-12

5x-3(2x+1)=21+x

5(-12)-3{2(-12)+1}=21+(-12)

-60-3{-24+1}=21-12

-60+72-3=9

-60-3+72=9

-63+72= 9

9=9

so,

LHS=RHS

Answer 2

Answer: x = -12

Step-by-step explanation:

5x-3(2x+1)=21+x

5(-12)-3{2(-12)+1}=21+(-12)

-60-3{-24+1}=21-12

-60+72-3=9

-60-3+72=9

-63+72= 9

9=9