Question

A) X + y = 2
X = y

b) 3X - y = 4
Y = 2X

c) 3X + 2Y =16
X = 2Y

d )X - 2Y = 18
X = 4Y

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Answer 1

Resposta:

A) X+Y=2

x=y

Y+Y=2

2Y=2

Y=2

2

y=1

b)3x-y=4

y=2x

3x-2x=4

x=4

c)3x+2y=16

x=2y

3.2y+2y=16

6y+2y=16

8y=16

y= 16

8

y=2

d)x-2y=18

x=4y

4y-2y=18

2y=18

y=18

2

y=9