one step equations
7+x=-3
x=-10
3x + 26 =-13
x=-13
2(x-7) =21
x=7/2
Simplify. 19x - 24x
-5x
The sum of 3 and a number is -21.
Write the equation.
3+x=-21
n+2=9
n=7
2x+15=−3x
-3
20=4−3c
6
Simplify. 8b + 3b
11b
Julie is 3 years older than her sister. Julie's age is n years old. How old is her sister?
Julie's sister's age n - 3
x−23=8
x=31
2g−4=6
g=5
−4(−3n−8)=16
n=-3/4
Simplify. 3 + 5(a + 4)
5a + 23
Mr. Cushman bought 7 Hannah Montana t-shirts for a total of $90.93. Each t-shirt cost the same amount. How many Hannah Montana t-shirts did Mr. Cushman buy?
7x = 90.93
x = 12.99
Each t-shirt cost $12.99
9k=-27
k=-3
3y – 2 = 13
5
2(4−y)−3(y+3)=−11
2
Simplify. - (2b - 4)
-2b + 4
Tyler has 4 boxes of apples. Each box has the same number of apples. After Tyler eats 3 apples, there are 109 apples left in the boxes. How many apples were in each box?
4x - 3 = 109
x = 28
There were 28 apples in each box.
x+7=2
-5
2z +15 = −3z
z = 3
−3x3+15=-9
2
Simplify. 7(t + 8.5) - 5t + 4
2t + 63.5
Mr. Bucci goes to a shop and buys 17 bags of apples and a $2.97 bottle of orange juice. His total cost was $34.76. What was the cost for a bag of apples?
17x + 2.97 = 34.76
x = 1.87
Each bag of apples cost $1.87