Solving Equations

Solving 1

100

n+8=18

n=10

200

6-p=12

p=-6

300

4m=12

m=3

400

18s=6

s=3

500

1(5i-5)=25

i=6

Solving 2

100

20d-18=38

d=1

200

x+2+x+3+x+4=21

x=4

300

3b+2=17

b=5

400

5+20p=5p+65

p=4

500

-3a+4=16

a=-4

Simplify the Equation

100

3r²+5r+4r-r²

2r²+9r

200

5(6z²y+y)+3y(-2z²-5)

30z²y+5y+(-6)

300

t²+3t+8-8t

t²-5t+8

400

2(2u-1)+u²

4u-2+u² 

500

4g²-9+3g-(-6g²)+4

10g²+3g-5

PEMDAS

100

What does the P stand for in PEMDAS?

parenthesis ()

200

What does the e stand for in PEMDAS?

Exponents x²

300

What does the M stand for in PEMDAS?

Multiply 9x2

400

What does the A stand for in PEMDAS?

Addition 2+1

500

What does the S stand for in PEMDAS?

Subtract 4-2

History

100

Who invented "solving equations"?

Rene Descartes

200

When were solving equations discovered?

17th century

300

What letter was originally used for an unknown variable?

x

400

When was PEMDAS created?

Late 1800s Early 1900s

500

When did schools start to teach PEMDAS?

1907