Question

practice
tell which value of the variable, if any,
is a solution of the equation.

1. ( d + 9 = 25 ) ( d = 6, 14, 15, 21 )
2. ( c - 8 = 25 ) ( c = 17, 28, 33, 35 )
3. ( 2y = 30 ) ( y = 10, 12, 24, 36 )
4. ( 150 div h = 50 ) ( h = 2, 3, 4, 5 )
5. ( f - 13.2 = 28.9 ) ( f = 38.7, 42.2, 45.8, 51.4 )

Explanation:

Step1: Solve for $d$

Rearrange to isolate $d$:
$d = 25 - 9$
$d = 16$

Step2: Solve for $c$

Rearrange to isolate $c$:
$c = 25 + 8$
$c = 33$

Step3: Solve for $y$

Rearrange to isolate $y$:
$y = \frac{30}{2}$
$y = 15$

Step4: Solve for $h$

Rearrange to isolate $h$:
$h = \frac{150}{50}$
$h = 3$

Step5: Solve for $f$

Rearrange to isolate $f$:
$f = 28.9 + 13.2$
$f = 42.1$
(Note: 42.2 is the closest provided value, likely a rounding difference)

Answer:

1. $d=16$
2. $c=33$
3. $y=15$ (not in the listed values)
4. $h=3$
5. $f=42.1$ (closest listed: 42.2)