Question

1. solve and check x + 1 = 25

answer:

1. solve and check 9c + 1 = 10

Explanation:

Step1: Isolate x (subtract 1)

$x + 1 - 1 = 25 - 1$

Step2: Simplify to find x

$x = 24$

Step3: Check solution

$24 + 1 = 25$, $25 = 25$ (valid)

Step4: Isolate 9c (subtract 1)

$9c + 1 - 1 = 10 - 1$

Step5: Simplify to find 9c

$9c = 9$

Step6: Solve for c (divide by 9)

$c = \frac{9}{9} = 1$

Step7: Check solution

$9(1) + 1 = 10$, $10 = 10$ (valid)

Answer:

1. $x = 24$
2. $c = 1$