Question

having trouble solving these ​

Answer 1

Answer:

t=0, x=40, y= -2

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

1)8t+4=3t-3+7

8t-3t=0

5t=0

t=0

2)x=4x/5+8

x=(4x+40)/5

5x=4x+40

x=40

3)9y-4y=-7-3

5y=-10

y=-2