What is the value of s in the equation 3 r equals 10 plus 5 s, when r equals 10? 4
8
100
200

Hey there!

“3r = 10 + 5s”

“r = 10”

3(10) = 10 + 5s

3(10) = 30

30 = 10 + 5s

“30 = 10 + 5s”

• FIRST: REVERSE/FLIP the EQUATION

5s + 10 = 30

• SECOND: SUBTRACT by 10 on BOTH SIDES

5s + 10 – 10 = 30 – 10

CANCEL: 10 – 10 because It gives you 0

KEEP: 30 – 10 because that helps us solve for our “s-value”

“30 – 10 = 20”

NEW EQUATION: 5s = 20

• THIRD: DIVIDE both SIDES by 5

5s/5 = 20/5

CANCEL out: 5/5 because that gives you 1

KEEP: 20/5 because that helps us solve for our “s”

NEW EQUATION: 20/5 = s

SOLVE ABOVE and YOU HAVE YOUR “S”

20/5 = 4

s = 4 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)