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

Factor the polynomial: x^2y+x+xy^2+y+2xy+2 (I NEED THIS ASAP)
What best explains the formula unit for a compound made from nitrogen and hydrogen? NH4, because nitrogen needs four electrons, and each hydrogen needs one ele
how many cities could 8 TeV power for a week?
What is the height of the ramp to the nearest foot?
Hi I will mark you as brainliest Please reply to my questions 1) what happens if it doesn’t rain for a long period of time? 2) list some uses of water for com
A mother just found out that her daughter had sexual contact with another person, what is the appropriate thing to do?A. Talk to her and get her checked outB. T
What are the defining characteristics of the Constitution?
Plz help! Find the values of x at which the function f(x) = x³ - 3x + 1 has a relative maximum and a relative minimum, and then find the relative maximum value
Write a hook relating to Romeo and Juliet.
One way to puncuate a compound sentence is to join the two independent clauses with