Question

Solve the equation and verify the solution using substitution.

-5(2r-0.3)+0.5(4r+3)=-64

Answer 1

-5(2r-0.3)+0.5(4r+3)=-64
(-5x2r)-(0.3x-5)+(0.5x4r)+(3x0.5)=-64
-10r-(-1.5)+2r+1.5=-64
-10r+1.5+2r+1.5=-64
-10r+2r+1.5+1.5=-64
-8r+3=-64
-8r+3-3=-64-3
-8r=-64
r=8.375

Hope this helps