Write the Algebraic Expression
Four times a number plus 8 is 15.
4x + 8 = 15
2 + 5k = 3k - 6
-4
A comparison of two numbers, sometimes written as a fraction.
Ratio
< represents what? Is it an open dot or closed dot?
Less than
Open dot
Solve for M
4M - 3n = 8
(3n + 8)/4
The sum of six and a number is 23.59.
6 + n = 23.59
5a + 2 = 6 - 7a
1/3
An equation stating that two ratios are equal.
Proportion
> represents what? Open or closed dot?
Greater than. Open dot.
Solve for n:
15 = 3n + 6p
(15 - 6p)/3
or (-6p + 15)/3
or -2p + 5
The sum of five times a number x and three is the same as fifteen
5x + 3 = 15
8a - 10 = 3 (6-2a)
2
(x-2)/14 = 2/7
Solve for x.
x = 6
x - 12 > 8
x>20
Solve for t
28 = t(r + 4)
t = 28/(r + 4)
Twice a number is equal to 3 less then four times that number.
2x = 4x - 3
4x - 3 = -5(x + 1)
-2/9
(x + 1)/4 = (x + 5)/3
Solve for x
-17
2w + 6 < 34
w < 14
(k-2)/5 = 11j
Solve for j
j = (k-2)/55
K/20 = 2.17
1/2x + 1 = 1/4x - 6
-28
(x + 4)/6 = (x -5)/9
Solve for x.
-22
2(h + 6) > -3(8 - h)
h < 36
Solve for q
a(q - 8) = 23
q = (8a + 23)/a