Solve the equation 3|3x-5 |= 30
2 answers:
Answer:
x = 5
Step-by-step explanation:
3|3x-5 |
3 x 3x - 3 x 5
3 x 3x = 9x
3 x 5 = 15
9x - 15 = 30
add 15 to both sides
9x = 45
divide each side by 9
x = 5
Answer:
x = 9
or
x = -1
Step-by-step 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
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Step-by-step explanation:
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