Answer:
Step-by-step explanation:
For number 8, to start,:
[tex]\frac{x}{4}[/tex] - 1 = 1
the first step is to add 1 to both sides of the equation; then, simplify.
[tex]\frac{x}{4}[/tex] - 1 = 1
+1 +1
----------------
next, the -1 and +1 will cancel.
[tex]\frac{x}{4}[/tex] = 2
the last step is to multiply both sides of the equation by 4.
4 · [tex]\frac{x}{4}[/tex] = 2 · 4
simplify; the 4s cancel out on the left side.
x = 8
**************************************************
For number 9, :
9 = 6 + [tex]\frac{x}{7}[/tex]
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 + [tex]\frac{x}{7}[/tex] = 9
6 + [tex]\frac{x}{7}[/tex] = 9
now, we'd subtract 6 from both sides.
6 + [tex]\frac{x}{7}[/tex] = 9
-6 -6
-----------------
next, the 6 and -6 will cancel.
[tex]\frac{x}{7}[/tex] = 3
the last step is to multiply both sides of the equation by 7.
7 · [tex]\frac{x}{7}[/tex] = 3 · 7
simplify; the 7s cancel out on the left side.
x = 21
