Question

Solve for r 4r + 8 = 7.2 + 5r

Answer 1

Answer: r=0.8

Step-by-step explanation:

4r + 8 = 7.2 + 5r

-4r             -4r

8=7.2+r

8-7.2=r

0.8=r

Answer 2

Answer: $r=0.8$

Step-by-step explanation:

-Solve:

$4r+8=7.2+5r$

-Subtract $5r$ from both sides:

$4r+8-5r=7.2$

Combine $4r$ and $5r$ to get $-r$:

$-r+8=7.2$

-Subtract $8$ from $7.2$ to get $-0.8$:

$-r=7.2-8$

$-r=-0.8$

-Multiply both sides by $-1$:

$r=0.8$

-Result:

$r=0.8$