how do you solve this equation: 12n=9(n+10)
12n=9(n+10)
12n = 9n + 90
12n - 9n = 9n - 9n + 90
3n = 90
n = ?
12n=9(n+10)
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=?
To solve the equation 12n = 9(n + 10), you need to perform the steps below:
Step 1: Distribute the 9 on the right side of the equation by multiplying it with both terms inside the parentheses.
12n = 9n + 90
Step 2: Simplify the equation by combining like terms on the right side.
12n - 9n = 90
3n = 90
Step 3: Divide both sides of the equation by 3 to isolate n.
3n/3 = 90/3
n = 30
So, the solution to the equation 12n = 9(n + 10) is n = 30.