Mallory W Algebra Review

Translations

100

six less than a number is twelve

n - 6 = 12

200

four less than twice a number is nine

2x - 4 = 9

300

ten times x is twice the sum and eight

10x = 2(x+8)

400

A number is 9 more than one third of itself

n = 9 + 1/3n

Equations

100

-8y-11=13

y=-3

200

3y-8=16

y=8

300

3(y-7)=27

y=16

400

20=4(x+3)

x=2

Polynomials

100

6m-6n-4m+n

2m-5n

200

n²-4n-3n²+7n=5n²

3n²+3n

300

p²q-q³-3p²q+4q³

-2p²q⁺³q3

400

7n-6+n+4

8n-2

FOIL

100

(n+7)(n+5)

n² +12n+35

200

(5k+2)(2k-3)

10k²-llk-6

300

(3x+7)(3x-7)

9x²+x -49

400

(r-3)(r+6)

r²+3r-18