Answer:
2 months
Step-by-step explanation:
x=months rented
20+30x=80 (Subtract 20 from both sides)
30x=60 (Divide both sides by 30)
x=2
Answer:
see explanation
Step-by-step explanation:
32 - 7x = 2x - 3(4x - 5) ← distribute parenthesis
32 - 7x = 2x - 12x + 15
32 - 7x = - 10x + 15 ( add 7x to both sides )
Anna made her error here in that she subtracted 7x from both sides
32 = - 3x + 15 ( subtract 15 from both sides )
17 = - 3x ( divide both sides by - 3 )
-
= x ← is the solution
42+7a= 7(6+a)
By noticing they both have a factor of 7, I was able to find the equation.
X= the total questions
x×20%=16. 20%=0.2
so x×0.2=16
solve for x and that is your answer; )
Answer:
19
Step-by-step explanation: