Question

Describe and correct the error in the solving equation

-0.8 +r=12.6
r-=12.6+(-0.8)
r= 11.8

Answer 1

the error is that you have passed the negative sign alongside with the 0.8 but you have corrected by putting the -0.8 in the parentheses. if you used a computer check your answer something that could have messed up was the negative sign on the right side of the r in the part where It says r=12.6+(-0.8)