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mezya [45]
3 years ago
12

Z+x3:use x = 1 and z = 19

Mathematics
1 answer:
pogonyaev3 years ago
7 0

Answer:21

Step-by-step explanation: plug in 19 and 1

1x3 is 3 plus 19 is 21

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2X+2Y=48<br> 3X+Y=40 <br><br> What is X and Y
marshall27 [118]

Answer:

x=8

y=16

Step-by-step explanation:

2x+2y=48

3x+y=40

Ther is many ways to solve this, one of them is clearance:

WE CLEAR AN UNLOCKED (X) AND REPLACE IT IN THE OTHER

x= (40-y)/3

2[(40-y)/3] +2y=48

(80-2y)/3 +2y=48

(80-2y+6y)/3=48

80+4y=48(3)

4y=144

y= 144/4

y=16

x=(40-y)/3

x=(40-16)/3

x=24/3

x=8

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Step-by-step explanation:

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