blue5488
02.01.2021 •
Mathematics
HELP!!
Find the solution of this system of equations
x - y = 4
- 10x + y = -58
Solved
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Ответ:
Step-by-step explanation:
given: x-y = 4
x=4+y
given: -10x + y = -58
plug in for x
-10(4 + y) + y = -58
-40 - 10y + y = -58
-9y = -18
y = -18 / -9
y = 2
now plug in 2 for y in the first equation
x-2=4
x=6
There is the solution x=6, y=2 :)
Ответ:
9.5 , 934 , 938 , 9.125
Step-by-step explanation: