**Answer:**

RB=45

**Step-by-step explanation:**

RB=BC

8X+5=5X+20

8X-5X=20-5

3X=15

X=15÷3= 5

RB=8(5)+5=45

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# 28. In the figure, point B is the midpoint of RC,, Find the length of RB if RB = 8x + 5 and, BC = 5x + 20, R, B, 0441

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**Answer:**

RB=45

**Step-by-step explanation:**

RB=BC

8X+5=5X+20

8X-5X=20-5

3X=15

X=15÷3= 5

RB=8(5)+5=45