Steps in solving equation 1 + 3x equals negative x + 4​

x=.75

Step-by-step explanation:

1 + 3x= -x + 4

1 +3x = 4 - x

  + x        + x

1 + 4x = 4

-1          -1

4x = 3

/4     /4

x = .75

x = 3/4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3x+1=−x+4

Step 2: Add x to both sides.

3x+1+x=−x+4+x

4x+1=4

Step 3: Subtract 1 from both sides.

4x+1−1=4−1

4x=3

Step 4: Divide both sides by 4.

4x 4 = 3 /4

x =  3 /4

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

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.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation: