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i hope it helps you my friend
Miss Kelly is taking 25 students on a field trip next week. 20 students have returned to their signed permission slip so far wha
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So basically you want to isolate only one of the variable on one side so
y=-9+x^2
add 9 to both sides
y+9=x^2
square root both sides
x=
y=-9+x^2
add 9 to both sides
y+9=x^2
square root both sides
x=