ch. 2 math test

writing equation

100

A number y plus seven equals three

y+7=3

200

The sum of five times a number x and three is the same as fifteen

5x+3=15

300

3p + 8 = 20

The sum of a number p times 3 and eight is twenty

400

h²-5h+6=0

A number h squared minus five times a number h plus six equals zero

500

One half of m cubed is the same as four times m minus nine

1/2m²=4m-9

one-step-equations

100

x-9=4

x=13

200

a/12 =5

a=60

300

3.8 = m + 1.7 

2.1 = m

400

5/9 + w = 7/9

w = 2/9

500

-t/16=-7/8

t=14

multi-step-equations

100

2d-4=8

d=6

200

14=-8-2k

k=-11

300

0.2c + 4 = 6

c=50

400

f/3-9.2=3.5

f=38.1

variable on both sides

100

8m+9=5m

m=-3

200

6g-3.5=8.5

g=2

300

(x-3)/4 = x/2

x=-3

400

9w-24=6w+18

w=14

consecutive integers

100

x+(x+1)=51

x= 25

25,26

400

Write an equation to fine three consecutive integers such that three times the sum of the first two integers is the same as 13 more than four times the third integers.

3(x + x + 1) = 4(x+2) +13

500

Find the sum of three consecutive odd integers if the sum of the first two integers is equal to twenty four less than four times the third integer

x+(x+2) + (x+4) = 11