endreu2005
02.07.2019 •
Mathematics
(20 pts) could someone me on these two questions for algebra 1? this is solving by subsitution
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Ответ:
5. first solve for y:
y = 5x+1
then plug this into the second equation
-7x - 2(5x+1) = 19
then solve for x
-7x - 10x -2 = 19
-17x = 21
x = -17/21
then plug back in to solve for y
y = 5(-17/21) +1
y = -64/21
x = -17/21
7. same process
y = -5
x = -1
Ответ:
Ответ:
the correct answer is option A. 24⁰
=> hope it helps <=