Asked by Candy
how do you solve this equation: 12n=9(n+10)
Answers
Answered by
Ms. Sue
12n=9(n+10)
12n = 9n + 90
12n - 9n = 9n - 9n + 90
3n = 90
n = ?
12n = 9n + 90
12n - 9n = 9n - 9n + 90
3n = 90
n = ?
Answered by
DrBob222
12n=9(n+10)
<b>remove parentheses
12n = 9n+90
Move unknown (n) to the same side by subtracting 9n from both sides.
12n-9n = 9n-9n+90
combine terms.
3n=90
divide both sides by 3.
3n/3 = 90/3
n=?</b>
<b>remove parentheses
12n = 9n+90
Move unknown (n) to the same side by subtracting 9n from both sides.
12n-9n = 9n-9n+90
combine terms.
3n=90
divide both sides by 3.
3n/3 = 90/3
n=?</b>
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