Writing Expressions
Write an expression for: "five less than four times a number"
4x - 5
x - 6 = 11
x = 17
Simplify: 3x + 5x
8x
3 + 4 * 2 = x
x = 11
Evaluate when x = 3: x+7
10
Write an expression for: "the quotient of a number and 6, increased by 2"
x ÷ 6 + 2
6x = 54
x = 9
Simplify: 6x - 2x + 4
4a + 4
(5+3)2 = x
x = 64
Evaluate when x = 5: 3x-2
13
Write an expression for: "three times a number decreased by 11"
3x - 11
2x + 9 = 25
x = 8
Simplify: 9x + 3 - 4x + 7
5x + 10
18 ÷ 3 + 4 * 2 = x
x = 14
Evaluate when x = 4: 2x2
32
Write an expression for: "the sum of a number and 9, then multiplied by 2"
2(x+9)
7x - 5 = 30
x = 5
Simplify: 4x + 3y + 2x - y
6x + 2y
12 - 2(3 + 1) = x
x = 4
Evaluate when x = 2 and y = 6: 3x+2y
16
Write an expression for: "half of a number plus 7, the multiplied by 3"
3(x ÷ 2 + 7)
4x + 3 = 2x + 15
x = 6
Simplify: 7x + 2y - 3x + 5y - x
3a + 7b
6 + 23 * 2 = x
x = 22
Evaluate when x = 3 and y = 4: 2x2+3y
30