Question

I need the steps and answers please

Answer 1

Answer:

Number 2: -3/10 (I think)

Number 4: 10a-5b-4

Number 6: x=5/2

Number 8: x=6

Step-by-step explanation:

Number 2:

3ysquared/2y-4x2

3(-1)squared/2(-1)-4x2

3x1/2(-1)-4x2

3x1/-10

-3/10

(I might be wrong with this one though)

Number 4:

10a-3b-4-2b

10a-5b-4

Number 6:

2(-3x+8)=4x-9

-6x+16=4x-9

-6x+16-16=4x-9-16

-6x=4x-25

-6x-4x=4x-25-4x

-10x=-25

-10x/-10=-25/-10

x=5/2

Number 8:

1(4x-8)/4=-x+10

4x-8/4=-x+10

4x-8/4+x=-x+10+x

8x-8/4=10

4x8x-8/4=4x10

8x-8=4x10

8x-8=40

8x-8+8=40+8

8x=48

8x/8=48/8

x=6