mae9110 mae9110

01-03-2021
Mathematics

contestada

3x+y=-9
Y=5x+7
Solve the system of linear equations by substitution

Respuesta :

hookkick6969 hookkick6969

02-03-2021

Answer:

x=-2

Step-by-step explanation:

Substitute y=5x+7 into the equation 3x+y=-9

So you will have, 3x+5x+7=-9

3x+5x=8x

8x+7=-9

8x+7-7=-9-7

8x=-16

x=-2

Answer Link

Otras preguntas

(04.04) Help me please! Escribe la preposición correcta para completar la frase. Write the correct preposition to complete the sentence. You may copy and paste

Which of the following words correctly describe a triangle with two 45 angles? A. Equilateral B. Isosceles C. Scalene D.Obtuse E. Right F. Equiangular

A data set has a maximum of 84, a minimum of 34, a median of 52.5, an upper quartile of 64, and a lower quartile of 44. Which statement is true of the box plot

just question number 16 plz help soon

help please ! Point Slope Form .

Write a ponlynomial funstion in standard form with zeros at -2, 5 and 6

please help me with this thx

Compare/contrast the worldview of the Religious Right, at the time of it's founding to your current worldview.

What is the 2nd term when −3f3 + 9f + 6f4 − 2f2 is arranged in descending order?

Eddie is fishing. He has 1 and one fourth ounces of weight on his line, but his bait isn't getting to the bottom of the lake. Eddie adds another 1/2-ounce weigh