sophiaa23
23.02.2021 •
Mathematics
Which of the following points solves the system below?
y equals 5x - 9
y equals -2x + 12
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Ответ:
X=7
Step-by-step explanation: add 9 both sides
add numbers
subtarct 2x both sides
divde both sides
solution : x=7
Ответ:
8x+15=7
8x=-8
x=-1