1)Substitution

-x-5y=-6

y=8x-7

2)Solve for x,y,z

9x-y+z=-6

4x+2y+3z=18

x-3y+2z=-12

3) A baseball team has home games on thurs and saturday. the two games together earn $4637. Thurs’ game makes $343 less than saturday’s game. How much money is made at each game?

4)Interval Notation

-24<2x-1<1

5) Solution set

|x+5|>3

6) x and y intercepts

x+2y>-10

7) Elimination method

4x+5y=1

8x+10y=2

Is it (x,y,)|4x+5y=1  or no solution or an ordered pair

Thank you so much!

1) (1,1)

2, 

3) 2490 saturday game

4637 - 2490 tuesday game, calculate the difference

4)  -23/2 < x < 1

5) -8<= x <= -2

6) the greater than sign is confusing, you don’t have intercepts for inequality, you have intervals, check it again

7) no solutions

doing 2nd one, have a go at rest of them till then