9 + 4(x - 1) = 25
First, subtract 9 from both sides. / Your problem should look like: 4(x - 1) = 25 - 9
Second, simplify 25 - 9 to get 16. / Your problem should look like: 4(x - 1) = 16
Third, divide both sides by 4. / Your problem should look like: x - 1 = [tex] \frac{16}{4} [/tex]
Fourth, simplify [tex] \frac{16}{4} [/tex] to get 4 (4 × 4 = 16) / Your problem should look like: x - 1 = 4
Fifth, add 1 to both sides. / Your problem should look like: x = 4 + 1
Sixth, add 4 + 1 to get 5. / Your problem should look like: x = 5
Answer: x = 5
