Question

2(2r-1)+4=5(r+1) solve the linear equation

Answer 1

distribute the distributable first..
\[\implies 4r - 2 + 4 = 5r + 5\]
combine like terms...
\[\implies 4r + 2 = 5r + 5\]
subtract 4r from both sides
\[\implies 2 = 5r - 4r + 5\]
subtract 5 from both sides
\[\implies 2 - 5 = 5r - 4r\]
does that help?