Distributive Property
3(4x+7)
12x+21
3x+5x+2
8x+2
8+2×5
18
Sarah is 5 years older than her brother. If her brother's age is x, write an expression for Sarah's age.
x+5
Solve for x:
3x+5=20
x=5
5(x+3)
5x+15
7a+3-2a+8
5a+11
(6+4)÷2×3
15
A shirt costs $x, and a pair of pants costs $y. If Maria buys 3 shirts and 2 pairs of pants. Write an expression to find the total amount she would pay.
3x+2y
Simplify the expression:
4x+2x−3+5
6x-8
18x+12
6(3x+2)
10y+3−4y+6+2y
8y+9
32+(5×2)−4
15
Katie has $50 in her account. She deposits $5 a week for x weeks. Write an expression to show the amount she would have.
50+5x
Distribute and simplify:
2(3x+4)
6x+8
4(2x-3y)
8x-12y
4m+6n−2m+3n
2m+9n
12÷(3+1)×2
6
A fruit stand sells apples for $2 each and oranges for $3 each. If you buy x apples and y oranges, write an expression for the total cost.
2x+3y
A number x is multiplied by 7, and the result is 35. What is the number?
x=5
45x-40
5(9x-8)
5x2+3x−2x2+7x+4
3x2+10x+4
7+3×(8−5)2÷3
16
Jason earns $15 per hour at his job. If he works x hours in a week, he also got a $50 bonus. Write an equation for the amount of money he would make.
15x+50
Solve the two-step equation:
5x−3=12
x=3