Question

please do this I am give you 77 points please please ​

Answer 1

Step-by-step explanation:

Let,

8z+2y=5..........1

8z-2y=2......2

1+2=8z+2y+8z-2y=5+2

=16z=7

=z=7/16

=•4375

8(•4375)-2y=2

3•5-2y=2

-2y=2/3•5

-2y=•5714286

y=•5714286/-2

=•2857143

so,128(•4375ו4375)+8(•2857143×2857143)

= 24•500006+0•6530616

=25•153068

thanks

Answer 2

Answer:

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