Question

Solve the following systems using any method you want. write answers as a coordinate.

I NEED ALL THOSE SOLVE DUE MONDAY February 27 ,2023
Question 1. x+8y=59
-3x +10y =61

Question 2. y=6x+34
y=-4x -6

Question 3. -2x -4y =26
9x+8y=-67

Question 4. 4x+4y=-4
y=-3x-9

Answer 1

Explanation:

1. (X=3, y=7)

Use the elimination method and multiply the top row by 3 to eliminate your x's.

3x+24=177

-3x+10y=61

34y=238 ( y=7), plug 7 into the original equation x + 8 (7)=59 solve x+56=59. Subtract 56 from both sides and (x=3)

2. (x=-4, y=10)

Problem 2 you would use the substitution method

Step 1 = -4x-6=6x+34.

Step 2= Solve for X. 10x=-40 therefore, x=-4

Step 3. Once you have x plug it back in to any of the original equations and get Y

Step 4: y=-4 (-4) -6. Y=16-6, therefore y=-0

3. (x=-4, y=3)

Use the substitution method:

Step 1: Plug y=-3x-9 into 4x +4y=-4

Step 2: 4x+ 4(-3x-9)=-4

Step 3: 4x-12x-36=-4

Step 4: Combine like terms -8x-36=4, add 36 to the right side

Step 5: -8x=32. Therefore when you divide by -8 (x=-4)

Step 6: Plug x=-4 into y=-3x-9

y=-3 (-4)-9 y=12-9. Therefore (y=3)