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Verdich [7]
3 years ago
5

If T is the midpoint of SU,find x. ( ST=8x+11 and TU= 12x-1)

Mathematics
2 answers:
sukhopar [10]3 years ago
8 0

Answer:

Step-by-step explanation:

Set the equations equal to each other and solve for x

8x+11 = 12x-1

11=4x-1

12=4x

x=3

Y_Kistochka [10]3 years ago
3 0
<h3>Answer: x = 3</h3>

============================================

Explanation:

T is the midpoint of SU, so point T cuts segment SU into two equal halves. Those two halves being ST and TU, therefore, ST = TU

ST = TU

8x+11 = 12x-1 ... substitution

8x+11-8x = 12x-1-8x ... subtract 8x from both sides

11 = 4x-1

11+1 = 4x-1+1 .... add 1 to both sides

12 = 4x

4x = 12

4x/4 = 12/4 .... divide both sides by 4

x = 3

As a check, plug x = 3 into each equation below

ST = 8x+11 = 8*3+11 = 24+11 = 35

TU = 12x-1 = 12*3-1 = 36-1 = 35

Each piece ST and TU is 35 units long. So this confirms we have the right answer.

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