avery0213 avery0213
  • 03-02-2021
  • Mathematics
contestada

у + 4 = 3х
— 2х + 5 = 19
How to solve this

Respuesta :

nvelasquez62
nvelasquez62 nvelasquez62
  • 03-02-2021

Answer:

x=-7, y=-25

Step-by-step explanation:

I will name your equations as follows:

  1. у + 4 = 3х
  2. — 2х + 5 = 19

Start with equation 2 and solve for x. This is a two-step equation.

[tex]-2x+5=19\\-2x=14\\x=-7[/tex]

Then, plug in your solution to equation 1:

[tex]y+4=3(-7)\\y+4=-21\\y=-25[/tex]

Answer Link

Otras preguntas

Log4(6x-8)=3 Help please
select difference of (8x2-3x3) - (2x2-5x3)
There are 6 pencils in a box. 3 of the pencils are red, 2 are blue and 1 is green. A pencil is taken out of the box without looking. What is the probability tha
If a=3 and b=5, what is the value of 3a + b to the power of 2?
does 20 hundredths equal 2 thousandths
the ratio of boys to girls at the movie is 4:7. If there are 21 girls, how many boys are at the movie?
How do round, spiral, and rod-shaped bacteria look like?
Suppose the slope of a line is positive. Describe what happens to the value of x as the value of y increases
a trapezoid has an area of 20cm squared and a height of 5 cm. what is the sum of its top and bottom sides
What is one half added to three tenths