-3r + 18 = 15r please help!!
2 answers:
Answer:
r = 1
Step-by-step explanation:
Step 1: Write equation
-3r + 18 = 15r
Step 2: Solve for <em>r</em>
- Add 3r to both sides: 18 = 18r
- Divide both sides by 18: 1 = r
- Rewrite: r = 1
Step 3: Check
<em>Plug in r to verify it's a solution.</em>
-3(1) + 18 = 15(1)
-3 + 18 = 15
15 = 15
Step-by-step explanation:
- 3r - 15r = -18 .... Moved variables to one side and constants to the other
- 18r = - 18 ..... Simplified
r = 1 ..... Divided to isolate the r
Check:
Plug in 1 for r
-3(1) +18 = 15(1)
- 3+18 = 15
15 = 15 .... Therefore 1 is correct
Answer is 1
Hope this helps!
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