Chapter 1

Solving simple equations

100

−14 = p − 11

p=-3

200

5.2 = a − 0.4

a=5.6

300

3/7 m = 6

m=14

400

f + 3π = 7π

f=4n

500

-3 1/6=k-2/3

k=-5/2

solving multi-step equations

100

3(x + 1) + 6 = −9

x=-6

200

17 = 7 + 4(2.2d − 8.5)

d=5

300

13 = −2(y − 4) + 3y

y=5

400

2x(5 − 3) − 3x = 5

x=5

500

5(3 − x) + 2(3 − x) = 14

x=1

solving multi-step equations with variables on both sides

100

15 − 2x = 3x

x=3

200

5p − 9 = 2p + 12

p=7

300

7 + 3x − 12x = 3x + 1

x=1/3

400

10(g + 5) = 2(g + 9)

g=-4

500

2/3 (3x + 9) = −2(2x + 6)

x=-11

solving absolute value equations

100

∣−9 ∣

9

200

−∣15 ∣

-15

300

∣14 ∣ − ∣−14

0

400

∣−3 ∣ + ∣3 ∣

6

500

∣ −3.5d ∣ = 15.4

d1=-4.4

d2=4.4

literal equations

100

3y − x = 9

solve for y

y=1/3x+3

200

2x − 2y = 5 solve for y

y=x-2.5

300

20 = 8x + 4y solve for y

y=5-2x

400

2x + kx = m solve for x

x=m/2+k

500

3 + 5x − kx = y solve for x

x=y-3/5-k