sperkins0624 sperkins0624
  • 26-03-2020
  • Mathematics
contestada

What is the solution to the system of equations -2x-y=1 -6x=3y+3

Respuesta :

bsnanbdj bsnanbdj
  • 26-03-2020
−
2
x
−
y
=
1
;
−
6
x
=
3
y
+
3

Step: Solve
−
2
x
−
y
=
1
for y:
−
2
x
−
y
=
1
−
2
x
−
y
+
2
x
=
1
+
2
x
(Add 2x to both sides)
−
y
=
2
x
+
1
−
y
−
1
=
2
x
+
1
−
1
(Divide both sides by -1)
y
=
−
2
x
−
1

Step: Substitute
−
2
x
−
1
for
y
in
−
6
x
=
3
y
+
3
:
−
6
x
=
3
y
+
3
−
6
x
=
3
(
−
2
x
−
1
)
+
3
−
6
x
=
−
6
x
(Simplify both sides of the equation)
−
6
x
+
6
x
=
−
6
x
+
6
x
(Add 6x to both sides)
0
=
0

Answer:
Infinitely many solutions.
Answer Link

Otras preguntas

what three steps describe how an animal obtains and uses energy for growth
1. What 2 things can you check prior to starting your car to evaluate if it is safe to drive?
In 1989 Soviet Union pulled out of where?
Mia is standing 210 yd from a radio tower. The angle of elevation from where she is standing on the ground to the top of the tower is 11°. How tall is the rad
The length of a screw produced by a machine is normally distributed with a mean of 0.65 inches and a standard deviation of 0.01 inches. What percent of screws a
Research shows evidence that subjects who are presented with choices about which they can make decisions
which european countries had territory that was no longer within russian boundaries because of the brest-litovsk treaty
Explain how you would use a number line to find the absolute value of –12.
Which of the following reference materials would you use to find general information about a key topic? A. map B. chart C. graph D. pamphlet
State the slope and y-intercept of the graph of 9 – x = 2y