Integer Operations
-4 + 10 =
6
2/3 times 15/21
10/21
Write an algebraic expression: Two more than four times a number.
4x + 2
3x = 39
x = 13
-3(7 + x) = 45
x = -22
13 - (-7) =
20
1 1/3 divide -3/4
-1 7/9
Evaluate the expression.
3a - bc when a = -2, b = 4 and c = -6
18
x - 3.6 = -9.2
x = -5.6
8 - m - 3m = 26
x = -4.5
-9 x - 8=
72
11/15 - (-3/15)
14/15
Simplify the expression by combining like terms.
-6a + 17 + 14a + 4
8a + 21
1/4x = -14
x = -56
-8n + n + 35 = 0
x = -5
-247 - (-301)=
54
7 6/7 + - 10
-2 1/7
Simplify the expression using the distributive property.
2(x - 8) + 4
2x + (-12) or 2x - 12
10 - 5x = 20
x = -2
Kelsey earned $136 last week. Write and solve a multiplication equation to find out how much she makes an hour if she worked 17 hours?
x = 8 hours
-1000 + 799
-201
-2 4/5 xx -3 1/3
9 1/3
-(4x - 7) + -x + 12
-5x + 19
-2/3 x + 6 = 36
x = -45
Mrs. Arnett and her family (4 people) are going to Italy. They each bought a plane ticket and also each bought trip insurance for $17.50 per person. If she spent $3520 all together, how much was each plane ticket?
4(t + 17.50) = 3520
t = $862.50 per ticket