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msm555

Answer:

1.

ST=23

RU=8

SV=5

SU=5+5=10

2.

24x-19=16x+13

24x-16x=13+19

8x=32

x=32/8

x=4

3.

8x-37=5x+17

8x-5x=37+17

3x=54

x=54/3

x=18

4.

4x+19=6x-7

19+7=6x-4x

2x=26

x=26/2

x=13

MN=4×13+19=71

5.

9x-15=7x-1

9x-7x=15-1

2x=14

x=14/2

x=7

CD=7×7-1=48

6.

3x+4=5x-16

16+4=5x-3x

2x=20

x=20/2

x=10

now

JL=3×10+4+5*10-16=68

7.4x+4=7x-17

17+4=7x-4x

3x=21

x=21/3

x=7

again

5y-31=2y+5

5y-2y=31+5

3y=36

y=36/3

y=12

now.

PQ:5×12-31=29

QR:2×12+5=24+5=29

PS:4*7+4=32

SR:7*7-17=32

PT:6*7-2*12=18

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