Please give details to them all I’m not very smart lol

Step-by-step explanation:

For number 8, to start,:

- 1 = 1

the first step is to add 1 to both sides of the equation; then, simplify.

- 1 = 1

   +1    +1

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next, the -1 and +1 will cancel.

= 2

the last step is to multiply both sides of the equation by 4.

4 · = 2 · 4

simplify; the 4s cancel out on the left side.

x = 8

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For number 9, :

9 = 6 +

like in number 8, the first step is to subtract 6 from both sides of the equation; also, a helpful tip you can use is move the 9 to the right side; speaking personally, it often helps make things visually easier to work out. you would then rewrite the equation like: 6 + = 9

6 + = 9

now, we'd subtract 6 from both sides.

6 + = 9

-6         -6

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next, the 6 and -6 will cancel.

= 3

the last step is to multiply both sides of the equation by 7.

7 · = 3 · 7

simplify; the 7s cancel out on the left side.

x = 21