viki3435 viki3435
  • 23-03-2021
  • Mathematics
contestada

Can please someone help me out and explain it step by step. Thank you

Can please someone help me out and explain it step by step Thank you class=

Respuesta :

nuuk nuuk
  • 28-03-2021

Answer:[tex]x=7, \ y=-2[/tex]

Step-by-step explanation:

Given

Equations are [tex]3x-y=23[/tex] and [tex]2x+3y=8[/tex]

take [tex]3x-y=23[/tex]

[tex]y=3x-23[/tex]

Put the value of y in another equation

[tex]\Rightarrow 2x+3(3x-23)=8\\\Rightarrow 2x+9x-69=8\\\Rightarrow 11x=77\\\Rightarrow x=7[/tex]

Put the value of x in y

[tex]y=3(7)-23=21-23=-2[/tex]

Hence, [tex]x=7, \ y=-2[/tex]

Answer Link

Otras preguntas

Alejandro Kirk is the catcher for the Blue Jays’ baseball team. He exerts a forward force on the 0.145-kg baseball to bring it to rest from a speed of 38.2 m/s.
It is also known as jingju lianpu that is done with different colors in accordance with the performing characters, personality and historical assessment.
how might rising atmospheric co2 concentrations lower the ph of the oceans?
using example, explain the concept of homeostasis
Answer using scientific notation 0,00000000023 x 140000000 830000 x 0,00000034 0,00000042 x 0,0000081
How is the input energy carried to the light bulb's energy stores?
I will mark brainliest to the correct answer.
What’s a good ship name for Ronica and Jaevin
What are the professions in teaching sector?explain.​
l A ball is projected upward from ground level. After (t) seconds, its height in feet is given by the function “h(t) = -16(t)^2 + 112(t)” After how many seconds