cupcakeaubree
cupcakeaubree cupcakeaubree
  • 12-02-2020
  • Mathematics
contestada

what’s the x coordinate of 3x-5y=10 and -x+3y=-6

Respuesta :

ghanami
ghanami ghanami
  • 12-02-2020

Answer:

x = -2

Step-by-step explanation:

hello :

the system is : 3x-5y=10 ...(*)

                       -x+3y=-6...(**)

multiply (**) by : 3   you have : -3x+9y = -18  ...(***)

add (*) and (***) : 4y= -8   so:  x = -2

Answer Link
jerome70
jerome70 jerome70
  • 12-02-2020
3x-5y=10
-x+3y=-6 time (3)

3x-5y=10
-3x+9y=-18

4y=-8
4/4y=-8/4
y=-2
Now for x
y = -2
3x-5y=10
3x-5(-2)=10
3x+10=10
-10 -10
3x=0
3/3x=0/3
x = 0
Answer Link

Otras preguntas

what are the labels and answer
An end table costs $69.85 today. If the CPI is 194, what would an end table cost in 1983, to the nearest cent? a. $135.51 b. $124.15 c. $36.00 d. $23.76
please help me im confused . . . ? ? ? ?
HELP ASAP What Eastern Chinese city is known as a modern commercial center full of energy and artistic design? (A) Xi’an (B)Shanghai (C)Siberia (D)Guilin
A b c or d please help
Write an equation for the following points: (1, 25) (2, 5) (3, 1)
Texas and oklahoma are the only two states that have
What would the potential of a standard hydrogen electrode (S.H.E.) be if it was under the following conditions? [H+] = 0.88M Ph2= 1.7atm T=298k
Suppose that y varies inversely with x. Write an equation for the inverse variation. y=6 when x=8
Thoreau’s main objection to the American government is that