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One-Step Equations
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Rewriting Equations and Formulas
100
x+5 = 8
x=3
100
3x+7 = 19
x = 4
100
p + 2p - 3 =6
p = 3
100
8t + 5 = 6t + 1
t = -2
100
Solve the equation for x. a ( x + b) = c
x = (c/a) - b
200
-2 = n-6
n = 4
200
17 = w/5 + 13
w = 20
200
-2 = 3y -18 - 5y
y = -8
200
3( d + 12) = 8 - 4d
d = -4
200
Write the equation so that y is a function of x. 2x + y = 7
y = 7 - 2x
300
-108 = 9j
j = -12
300
7 = (5/6)c - 8
c = 18
300
3 + 4(z + 5) = 31
z = 2
300
8z = 4(2z + 1)
No Solution
300
Write the equation so that y is a function of x. 3 + 6x = 11 - 4y
y = 2 - (3/2)x
400
-11 = z/-2
z = 22
400
The output of a function is 9 less than 2 times the input. Find the input when the output is -10.
y = 10x-9; 2
400
4 = (2/9) (4y - 2)
y = 5
400
8w - 8 - 6w = 4w - 7
w = -1/2
400
Solve for w. V = L*W*H
W = (V/LH)
500
3/4 = 1/8 + v
v = 5/8
500
The output of a function is 7 more than 3 times the input. Find the input when the output is -8.
y = 3x + 7; -5
500
8.9 + 1.2( 3a - 1) = 14.9
a = 2
500
3.7b + 7 = 8.1b - 19.4
b = 6
500
Solve for h. S = 2B + Ph
h = (S - 2B)/P