The sum of 5 times a number and 3 is the same as the difference of the number and 9. Find the number
1 answer:
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Answer:
x = ± i
Step-by-step explanation:
subtract 64 from both sides
9x² = - 64 ( divide both sides by 9 )
x² = - ( take the square root of both sides )
x = ± = ±
i
The appropriate choice is ...
1) 4x-5y=-5 and 3x+10y=-20
1) 4x-5y=-5 and 3x+10y=-20