-3r+18=6r
-3r+18=6r
18 = 6r + 3r
18 = 9r
18/9 = r
? = r
_3r+18=6r
add 3r to ech side of equation.
18=9r
dived each side by 2
2=r
r=2
To solve the equation -3r + 18 = 6r, you need to isolate the variable r on one side of the equation. Here's how to do it step by step:
Step 1: Combine like terms. Add 3r to both sides of the equation to eliminate the -3r term on the left side:
-3r + 3r + 18 = 6r + 3r
18 = 9r
Step 2: Divide both sides of the equation by 9 to solve for r:
18/9 = 9r/9
2 = r
So the solution to the equation -3r + 18 = 6r is r = 2.