a number decreased by 7
x-7
6x – 13 = 11
x= 4
(x+1)/5=10
x = 49
Solving Equations
5n - 2 = 8n - 14
n = 4
2x=d solve for x
x=d/2
twice a number added to 9
2x+9
3x + 5 = 14
x= 3
(3x+3)/2=9
x = 5
Solving Equations
32p + 1 = -79 - 8p
p = -2
3x+y=10 solve for y
The difference between x and 8
x-8
(x/2) +10=-8
x= -36
WILD CARD - BONUS 100 POINTS - IF CORRECT
2x-5+9=16
x =6
Solving Equations
14n - 30 + 22n + 18 = 8n - 40
n = -1
5x+6y=12 solve for x
y= (12-6y)/5
3 times the sum of a number and 4
3(x+4)
1/2x-4=10
x= 28
172 = 2(2a + 3)
a=7
Solving Equations
5x + 5 + 4x = 4 - 3x + 6
x= 5/12 or x= 0.41667
WILD CARD - BONUS 100 POINTS - IF CORRECT
(x+5)=18
x= 13, -23
9 less than 4 times a number
4x-9
(x/3)+12=-3
x= -45
3(x+5)+10=73
x=16
Solving Equations
-40n + 86 - n = - 22 - 5n
n = 3
(2x+1)=19
x=9, -10