Simplify
4x - 5 for x = 4
4*4 - 5 = 11
6x^2 - 10 for x = 4
6(4)^2 - 10 = 86
What does the word less than mean? (2 meanings)
subtraction and flip the problem
(11 - 3z) + x + y for z = 2, x = 9, y = 5
(11 - 3(2)) + 9 + 5 = 19
What does product mean?
multiplication
2a + 5 for a = 3
2 * 3 + 5 = 11
one-third of a number
1/3d or d/3
3p - 2(r - q) for p = 4, r = 5, q = 3
3(4) - 2(5 - 3)= 12 - 2(2) = 12 - 4 = 8
7n + 8
The product of seven and a number plus 8
3(2y - 1) + 6 for y = 2
3(2 (2) - 1) + 6 = 15
Eleven times the sum of a number and five
11(x+5)
(14f - 6c) + e^8 for f = 1, c = 117, e = 2
(14(1) - 6 (117)) + 256 = -432
2(x+5)
Twice the sum of a number and 5.
3(6 - b) + 7 - 2b for b = 4
3(6 - 4) + 7 - 2(4) = 5
three less than a number is 4
x-3=4
2(y^5 - h^2 - 3j) + 2k for y = 4, h = 6, j = 7, k = 8
2((4)^5 - (6)^2 - 3(7)) + 2(8) = 1950
If you were given an expression how would you know that the answer should be 2(x+5). Why does it have parenthesis?
The 2 comes out front or their is a comma in the expression.
n/4 + 2n - 3 for n = 8
8/4 + 2(8) - 3 = 15
2x^4 + 5L^7 - 6w^3 - 4m^2 for x = 3, L = 6, w = 4, m = 5
2(3)^4 + 5(7)^8 - 6(4)^3 - 4(5)^2 = 2(81) + 5(279936) - 6(64) - 4(25) = 162 + 1399680 - 384 - 100 = 1399358
The quotient of twenty and 5 increased by a number.
20/5+ x
3(2f -4e)^2 - 5g + 6k/6 for f = 9, e = 8, g = 1, k = 6
3(2(9) - 4(8))^2 - 5(1) + 6(6)/6 = 589
2/x +5
The quotient of 2 and a number plus 5.