Algebra project

solving equations

100

Anything you do to _______, you have to do to the _____

Fill in the blanks 

One side, other

200

6.t = 60. 

Find value for t

t = 10

300

-5+X=17

X=22

400

6x-2(X-5)=46

X=9

500

2p2 q2 – 3pq + 4, 5 + 7pq – 3p2 q2

-p2q2 + 4pq + 4,5

solving systems by substitution

100

you have to solve one of the equations for one of the ________

Fill in the blank  

variables 

200

2x+5y=19 

y=3x-3

(2,3)

300

-4x+3y=-2

y=x+1

(5,6)

400

y=-2x-9

6x-5y=-19

(-4,-1)

500

-x+y=3

3x+y=-1

(-1,2)

Adding/subtracting polynomials

100

To add or subtract uttryck ________ the similar terms. 

fill in the blank 

combine

200

(x+5)+(4x-7)

5x-2

300

(11x-x²+13)+(2x²-23-5x)

X²+6x-10

400

(4x²+5x)-(7x+3x²+1)

x²-2x-1

500

(12+8x³+3x-4x²)+(5x³+15-x+2x²)

13x³-2x²+2x+27

Multplication and equations

100

Standard form to write linear equation

y = kx+m

200

9(x-3)+3x=7x+43

X=12

300

39=3x+4+2x

x= 7

400

6x-2(2-x)=2-2x

x=0,6

500

4(x-2)- 2(3-2x) = 3(x-4)

x=0,4

Maths Riddles

100

81 x 9 = 801. What must you do to make this equation true?

Flip it upside down. 108 = 6 x 18

200

If you go to the movies and you’re paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

It’s cheaper to take two friends at the same time. In this case, you would only be buying three tickets, whereas if you take the same friend twice you are buying four tickets.

300

How can you make the following equation true by drawing only one straight line: 5+5+5=550?

Draw a line on the first plus sign that turns it into a 4! The equation then becomes true: 545+5=550.

You could also change the equal symbol to a crossed-out equal symbol which means “not equal to.”

400

When I take five and add six, I get eleven, but when I take six and add seven, I get one. When is it possible?

In a clock

500

Three times what number is no larger than two times that same number?

ZERO