MATH EQUATIONS

finding X

100

 x + 1 = 9?

x=8

200

-3 + 2x = 11?

 x = 7

300

4x + 6 = -10?

x = -4

400

x + 9 = 18 - 2x?

x = 3

500

-10x - 19 = 19 - 8x?

 x = -19

Find the y-intercept

100

y=-3x-9

y=-9

200

y − 9 = 3x

y= 9

300

x+6y=-24

y=-4

400

4x + 7y + 5 = 0

 - 5/7

500

9x - 5y + 2 = 0?

 -2/5

find the slope

100

 4x + 7y + 5 = 0

-4/7

200

9x - 5y + 2 = 0

9/5

300

4y+x=8

-1/4

400

-y=-3x+6

3

500

-2y=-8x+9

4

find x-intercept

100

2x-3y=12

x=6

200

3x+4y=9

x=3

300

3x-4y=-12

x=-4

400

x+y=3

x=3

500

3x+4y=12

4

adding negative numbers

100

-11+5

-6

200

6667+-88

6,579

300

100+44

144

400

-99+4

104

500

165978+98,754,642

-197,343,306