Ch 3 - Math 7 Equations and Inequalities

+-

100

m + 3 = -5

m = -8

200

-5 + y - 5y = -13

y = 2

300

8 - j = -17

j = 25

x/

100

3v = -33

v = -11

200

x / 44 = -2

x = -88

300

4/3v=12

v = 9

+-x/

100

 -16 = 4b + 4 

b = -5

200

-3c + 14 = 26

c = -4

300

- 10 -5s = -45

s = 7

+-x/ expanding

100

4(m - 8) = -4

m = 7

200

-7 (k - 5) = -21

k = 8

300

-5(3f - 2) -100 = 60

f = -10

Inequalities ><=

100

g - 15 > 30

g > 45

200

7y > 14

y > 2

300

-3a  < -12

a > 4