Alg 1 Ch1 Test Review - Copy

Simple Equations

100

w+3=-4

w=-7

200

5.2=a-0.4

a=5.6

300

-8r=64

r=-8

400

3/2+t=1/2

t=-1

500

-3 1/6=k-2/3

k=-2 1/2

Solving Multi-Step Equations

100

3w+7=19

w=4

200

12v+10v+14=80

v=3

300

-9(t-2)=4(t-15)

t=6

400

(d-8)/-2=12

d=-16

500

7/10c-8-1/2c=-16

C=-40

Absolute Value

100

|x|=13.4

x=13.4 and -13.4

200

|-3.5d|=15.4

d=-4.4 and 4.4

300

|t/2|=6

t=12 and -12

400

|x-1|+5=2

No solution

500

|1/3y-2|-7=3

y=-24 and 36

Rewriting Literal Equations

100

Solve 2y-18x=-26 for y

y=-13+9x

200

Solve

11-1/2y=3+6x

for y

y=16-12x

300

Solve y=3bx-7x for x

x=y/(3b-7)

400

Area of A trapezoid is A=1/2h(b₂+b₁)

Solve the equation for b₂

b₂=2A/h-b₁

500

The total cost C (in dollars) to participate in a ski club is given by C = 85x + 60, where x is the number of ski trips you take.
Solve the equation for x.

x=(C-60)/85