Suppose you have 30 CDs. You know that you have 11 more CDs than your friend. Write an equation to find the number of CDs your friend has. Then solve.
n + 11 = 30
n = 19
200
x/7 = -49
x = -343
200
Identify the coefficients:
6x + 3 - y
6 and -1
200
(7+3)+9 = 7+(3+9)
Associative Property of Addition
200
2c +2 +5c
7c + 2
200
Together, Louisa and Jill scored 30 points in the basketball game. If Jill scored 12 points, how many points, p, did Louisa score? Write an equation and solve.
12 + p = 30
p = 18
300
x + 54 = 98
x = 44
300
Identify the like terms:
6x + 3 - y + 3x
6x and 3x
300
7 + 0 = 7
Identity Property of Addition
300
5(b+8)
5b + 40
300
Write an equation for: 13 multiplied by h is 104. Then solve.
13h = 104
h = 8
400
x - 32 = 7
x = 39
400
Identify the like terms:
5a + 9 - 4a + 14
5a and -4a
9 and 14
400
8 x 1 = 8
Identity Property of Multiplication
400
Is 9 = 5+4 true, false, or an open statement?
true
400
A farmer sees 13 of his cows in the barn. He has a total of 26 cows. Let c represent the number of cows outside. Could c = 10? Write an equation and use substitution to determine if the given value is a solution.
13 + c = 26
13 + 10 = 26
No
500
-9x = -72
x = 8
500
Identify the Constants:
5x + 4y - 5 + 1
-5 and 1
500
g = 0 + g
Identity Property of Addition
500
If c = 2c - 4, can c = 10?
NO
500
Use the distributive property to multiply:
8(6r - 10)