The number is 5.5.
Algebraically, this problem is:
5(2x + 3) = 70
10x + 15 = 70
10x = 55
x = 55/10 = 5.5
three times a number decreased by eleven
One.
18
The number is 7.
2x = 76 x = 38
twice the difference of three times a number and eight
A + 2a = 3a
three times a number decreased by eleven
The answer is 42
There are two possible (and different) answers: 2x + 3y = 12 or 2*(x + 3y)= 12 The first one is (twice a number) increased by (three times another) The second is twice (a number increased by (three times another)).
One.
18
2x+x=3x
n + 2n = 3n
The number is 7.
2x = 76 x = 38
What is the quotient of twice the number and three