Solve for x: -2 + 3y= y - 2 - 4y *

Step-by-step explanation:Step 1: Simplify both sides of the equation.

−2+3y=y−2−4y

−2+3y=y+−2+−4y

3y−2=(y+−4y)+(−2)(Combine Like Terms)

3y−2=−3y+−2

3y−2=−3y−2

Step 2: Add 3y to both sides.

3y−2+3y=−3y−2+3y

6y−2=−2

Step 3: Add 2 to both sides.

6y−2+2=−2+2

6y=0

Step 4: Divide both sides by 6.

6y

6

=

0

6

y=0

y=0

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: