x + 5 = 12
x = 7
Solve: 2x+3=11
x=4
Write an algebraic equation for this sentence: five more than three times a number is fifteen.
5+3x=15
Solve: 8+4d=5d
d=8
Solve: 5(a-7)=25
a=12
x = 60
Solve: 3x+2=20
x=6
Write a verbal expression to show this equation: 2x-5=30
Two times a number (x) minus five is equal to thirty.
Solve: 6n-1=4n-5
n=-2
Solve: 15(20+d)=420
d=8
n = 9
Solve: 5+2n=-1
n=-3
Write an algebraic equation for this sentence: ten more than the quotient of a number and six is five.
10+x/6=5
Solve: 8a=5a+21
a=7
Solve: 8(3a+6)=9(2a-4)
a=-14
4.9=0.7t
t=7
Solve: 10-2/3p=52
p=-63
Write an equation for this sentence: seven less than a number divided by two is equivalent to twenty-five.
x/2-7=25
Solve: 3x-7=8x+23
x=-6
Solve: -5(3m+6)=-3(4m-2)
m=-12
-1.4m=2.1
m=-1.5
Solve: n/-3-2=-18
n=48
You buy 3 books that all cost the same and another book that costs $1.99. The total is $55.99. Write an equation that shows the cost of the 3 books.
3x+1.99=55.99
Find the value of x:
x=5
Solve: -7(k+9)=9(k-5)-14k
k=-9