25middletonca
25middletonca 25middletonca
  • 11-11-2020
  • Mathematics
contestada

Y=2x+6
3y-x+3=0

Substitute to solve

Brainliest for correct answer

Respuesta :

keziakh004
keziakh004 keziakh004
  • 11-11-2020

Answer:

-21/5 or -4.2

Step-by-step explanation:

y = 2x + 6

3y - x + 3 = 0

Substitute the value for y from the first equation into the second equation.  Solve for x.

3y - x + 3 = 0

3(2x + 6) - x  + 3= 0

6x + 18 - x + 3 = 0

5x + 18 + 3 = 0

5x + 21 = 0

5x + 21 - 21 = 0 - 21

5x = -21

x = -21/5 or -4.2

Answer Link

Otras preguntas

how does the dilation affect angle measures
Which is bigger? 5/6 or 5/8
A triangle that is very special to you has an area of 12 square feet. The height of this figure is six feet. What is the length of the base?
what is the mean of Jane's quiz scores; 82,64,73,91,85
which physical quantity can be measured by finding area under a speed-time and distance-time graph each?
Slope intercept form of the linear function (0,7) (2,2)
the state of matter that keeps its shape and volume when it is placed in a different container
Two identical rubber balls are dropped from different heights. Ball 1 is dropped from a height of 196 feet, and ball 2 is dropped from a height of 271 feet.
7000 is 1/10 of what number
how are the sun rays like mathematical rays