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RS = 3y + 41, ST = 18y - 76 and RT = 91.
2) Find y.

1 Answer

5 votes

Answer:

The answer is y = 6.

Explanation:

Given:

RS =
3y+41, ST =
18y-76 and RT = 91.

Now, to find the
y.

According to question add the equations:

RS + ST = RT


3y+41+18y-76=91

Adding the numbers and variables in L.H.S.


3y+18y-76+41=91


21y-35=91

Adding 35 on both sides:


21y-35+35=91+35


21y=126

Dividing both sides by 21:


21y/ 21=126/ 21


y=6

Therefore, the answer is y = 6.

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