Question

Solve the equation 3|3x-5 |= 30

Answer 1

x = 9

or

x = -1

Explanation:

3|3x-5 |= 30 Multiply 3 with both 3x and -5

|15x - 15| = 30 then there are two possibilities

15x - 15 = 30 or 15x - 15 = -30

for first equation

15x - 15 = 30 add 15 to both sides of the equation

15x = 45 divide both sides by 15

x = 9

for second equation

15x - 15 = -30 add 15 to both sides

15x = -15 divide by 15

x = -1