Question

Please Help!! Urgent ( Zoom in to see it better)

Answer 1

. You are trying to isolate "F" in the equation

Multiply 9/5 on both sides

Add 32 on both sides

THIS IS WRONG

2. You are trying to isolate "y" in the equation

Multiply 3 on both sides

3m = x + y + z Subtract x and z on both sides

3m - x - z = y

THIS IS CORRECT

3. Isolate "r"

Multiply (r - 1) on both sides

s(r - 1) = r Distribute s into (r - 1)

sr - s = r Subtract sr on both sides

-s = r - sr Factor out r from (r - sr)

-s = r(1 - s) Divide (1 - s) on both sides

THIS IS WRONG

4. Isolate "b"

Multiply 2 on both sides

2A = a + b Subtract a on both sides

2A - a = b

THIS IS CORRECT

5. Isolate "y"

Multiply 2 on both sides

2m = x + y Subtract x on both sides

2m - x = y

THIS IS WRONG

The 2nd and 4th one is right

Explanation:

Answer 2

1. You are trying to isolate "F" in the equation

`C=(5)/(9)(F-32)` Multiply 9/5 on both sides

`((9)/(5))C=((9)/(5)) (5)/(9) (F-32)`

`(9)/(5)C=F-32` Add 32 on both sides

`(9)/(5)C+32=F-32+32`

`(9)/(5)C+32=F`

THIS IS WRONG

2. You are trying to isolate "y" in the equation

`m=(x+y+z)/(3)` Multiply 3 on both sides

3m = x + y + z Subtract x and z on both sides

3m - x - z = y

THIS IS CORRECT

3. Isolate "r"

`s=(r)/(r-1)` Multiply (r - 1) on both sides

s(r - 1) = r Distribute s into (r - 1)

sr - s = r Subtract sr on both sides

-s = r - sr Factor out r from (r - sr)

-s = r(1 - s) Divide (1 - s) on both sides

`(-s)/(1-s)=r`

THIS IS WRONG

4. Isolate "b"

`A=(1)/(2)(a+b)` Multiply 2 on both sides

2A = a + b Subtract a on both sides

2A - a = b

THIS IS CORRECT

5. Isolate "y"

`m=(x+y)/(2)` Multiply 2 on both sides

2m = x + y Subtract x on both sides

2m - x = y

THIS IS WRONG

The 2nd and 4th one is right