24-04-2018
Mathematics

contestada

3x + 4 = 19 solve the equation check the solution

Respuesta :

24-04-2018

Subtract 4 from both sides to get 3x = 15.

Divide by 3 on both sides to get x = 5.

Plug this back in.

3(5) + 4 = 19.
15 + 4 = 19.
19 = 19

Answer Link

Аноним Аноним

24-04-2018

3x + 4 = 19

Take away 4 from both sides:
3x = 15

Divide both sides by 3:
x = 5

Answer: x = 5

To check, we plug x = 5 into the equation:
3x + 4 = 19
3(5) + 4 = 19
19 = 19 (✓ correct)

Answer Link

Otras preguntas

What is a deep valley with steep steps

How did socialist labor movements affect strife at start of 20th century

-2(x+3y)=18 solve for y!

logb121=2 Can somebody help and explain?

Solve the linear system1).5x + 4y = 16 y = -16 2). 3x + 6y = 15 -2x + 3y = -3 3). 7y = -14x + 42 7y = 14 x + 14

One group of people purchased 10 hot dogs and 5 soft drinks for $35. Another group purchased 7 hot dogs and 4 soft drinks for $25.25. What is the cost of a sin

There are 100 pennies in a dollar. What fraction of a dollar is 61 pennies? Write it as a fraction, as a decimal,and in word form

One group of people purchased 10 hot dogs and 5 soft drinks for $35. Another group purchased 7 hot dogs and 4 soft drinks for $25.25. What is the cost of a sin

-5x+y=-33x-8y=24solve this for me someone (solving systems of equations by substitutions)looking for x and y

Could the last carbon atom chain make bonds with four hydrogen atoms?why or why not?