gmaxgaming88
30.07.2019 •
Mathematics
Rodney is given two linear equations : x - y = 11 and 2x +y =19. what value if x shkuld he get as a solution for thus system of linwar equations
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Ответ:
B) 2x +y =19
Multiplying equation A) by -2
A) -2x + 2y = -22 then we add it to B)
B) 2x + y = 19
3y = -3
y = -1
x = 10
Ответ:
18
Step-by-step explanation: