myaroys
myaroys myaroys
  • 02-03-2021
  • Mathematics
contestada

y - 3x = 21
x - 5y = -35
solve by substitution(show steps please)

Respuesta :

iy41284
iy41284 iy41284
  • 02-03-2021

Answer:

x=-5 y=6

Step-by-step explanation:

y-3x=21

y-3x+3x=21+3x

y=3x+21

x-5y=-35

x-5(3x+21)=-35

x-15x-105=-35

-14x-105=-35

-14x-105+105=-35+105

-14x=70

x=-5

y-3(-5)=21

y+15=21

y+15-15=21-15

y= 6

Answer Link
mykatoussaint99 mykatoussaint99
  • 02-03-2021

Answer:

x=5

y=6

Step-by-step explanation:

That is the answer

Answer Link

Otras preguntas

to access your course materials such as reading, textbooks, and other lesson content, it would be best to go to the?
What is the only State in which less than 20% of its inhabitants are classified as obese? A. Kansas B. Georgia C. Colorado D. Arkansas
Newton's third law of motion states. For every action there is an equal and opposite _______
Who was a member of the Second Continental Congress
If (x+k) is a favor of f(x) which of the following must be true? A) f(k)=0 B) f(-k)=0 C) a root of f(x) is x=k D) a y-intercept of f(x) is x=-k
Evaluate (precalculus)
Can I get help on 11 & 12
It costs Guido $0.20 to send a text message from his cell phone. He has already spent $4 in text messages this month. If he has a total of $10 that he can spend
The amount of water pumped, in gallons, is proportional to the number of minutes a pump is on. The graph shows this relationship. Select from the drop-down menu
"the question of why individuals behave, think, and feel the way they do" defines