Solve 8=3r-1 step by step

2 answers:

8 0

Hi,

Again, we're going to be following the same format we did last time, but the sides of the equation have been swapped. Let's not worry about this, as it doesn't exactly make a difference.

Since 1 is negative, we must add it on both sides.

8 + 1 = 3r - 1 + 1

9 = 3r

Now, we have 3 which is multiplying our variable r. The inverse of multiplication is division, so we will divide both sides by 3. This will leave us with our answer.

9 / 3 = 3r / 3

3 = r or r = 3.

Hopefully, this helps.

tatuchka [14]3 years ago

7 0

1+8=3r
9=3r
Both divided by 3
3=r

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