1 and 2 Step Equations
x + 7 = 4
x = -3
2x + x = 12
x = 4
2(4 - x) = 18
x = -5
10b + 18 = 8b + 4
b = -7
2x - 1 = -13
x = -6
6x - 2x + 1 = -27
x = -7
14 + 2(4g - 3) = 40
g = 4
3(d + 12) = 8 - 4d
d = -4
7x = 84
x = 12
-9d - 2d + 11 = -55
x = 6
A skateboarding park charges $7 per session to skate and $4 per session to rent safety equipment. Jared rents safety equipment every time he skates. During one year, he spends $99 for skating charges and equipment rentals. Write an equation that can be used to find the number of sessions Jared attended.
7x + 4x = 99
27 = 3c - 3(6 - 2c)
c = 5
-13p = -p - 6
p = 1/2 or 0.5
(-2/7)x = 4
x = -14
-1 = (1/3)x + (2/3)x - 3
x = 2
For the period 1999–2004, the maximum depth of the Dead Sea decreased by 9.9 feet. The maximum depth in 2004 was 1036.7 feet. What was the maximum depth in 1999?
1,046.6 feet
1/3 (d + 3) = 5
d = 12
3x + 7(2x - 1) = -177
x = -10
(x/2) + 5 = 11
x = 12
23 = -4m + 2 + m
m = -7
-32 = (8/7)(3w - 1)
w = -9
5(n + 2) = (3/5)(5 + 10n)
n = 7