Question

1. Sy=-3x
by - x = -38
2. { x + y = 1
3x + 5y = 7
3. fx + 5y = 10
x + 5y = 15
4. $3x-8y = 4
66- 42 = 164
5. S2x + 4y = 8
x + 2y = 4
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Answer 1

Answer:

sy=-3x

by -41=-38

2. (0+1=1

3x+5y=7

3.f=5x

5x+5x=10x+5y=15