One-Variable Equations
3+x=8
x=5
Evaluate when x=3
19+x
22
Simplify.
5x+3x+4
8x+4
14+g
Zendaya is 6 inches taller than her brother. Zendaya is 68 inches tall. How tall is her brother?
62 inches
m-82=95
m=177
Evaluate when y=12
4y
48
Simplify.
6x+21-2x
4x+21
Mary is twice as old as her daughter. Write an expression to represent this.
2m
The Chicago Bears won 8 games and played 14 games. How many games did they lose?
6
3x=36
x=12
Evaluate when p=3
2p+3
9
Simplify.
9y+4p+3y+7
13p+3y+7
Gary planted the same amount of sunflowers in 4 different gardens. After planting, he had 3 flowers leftover. Write an expression that represents how many sunflowers Gary started with.
4s+3
Tyler is five times as old as Spencer. The sum of their ages is 15. How old is Spencer?
3
4y-2=22
y=6
Evaluate when r=9
9r-32
49
Simplify.
8m+9h-3+2m-7h
2h+10m-3
Joanna sold candy bars for $2 each. She had to pay $12 to get the candy bars. Write an expression for how much money Joanna will have after selling candy bars.
2c-12
Jane went to a bookstore. She pays a flat fee of $5 to ship any number of books. She is able to purchase the books at $8 a piece. She pays $45 for her books. How many books did she buy?
5
5n+32=45
n=2.6
Evaluate when m=2.6
4m+13
23.4
Simplify.
4x+9m-3y+m-3x
10m+x-3y
Chris' test was made up of questions worth 4 pts each. It included an extra credit question worth 10 pts. Write an expression that gives the total number of points Chris could earn.
4t+10
In a reforestation program, 4800 seedings were planted. Twice as many maple as birch were planted. How many birch were planted?
1600