How do you solve for R in #T+R=M#?

Question

2106 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-03-30T13:51:45

#" "R=M-T#

Given:#" "color(brown)(T+R=M)#

To solve for R your objective is to have R on its own on one side of the equals sign and everything else on the other side.

To have R on its own wee need to remove the 'T'

What you do to one side of an equation you do the other

Subtract (remove) #color(blue)( T)# from both sides giving

#color(brown)(Tcolor(blue)(-T)+R" "=" "Mcolor(blue)(-T))#

But #T-T=0# giving

#" "0+R=M-T#

#" "R=M-T#