SydGrahl
SydGrahl SydGrahl
  • 13-02-2019
  • Mathematics
contestada

Use substitution to solve, please.​

Use substitution to solve please class=

Respuesta :

Asdfjkadfjkakjf Asdfjkadfjkakjf
  • 13-02-2019

Answer:

Step-by-step explanation:

1. 4x+2y=-12

2. 3x+y=-10

subtract 3x from left n right of 2. the eqn becomes

3. y=-10-3x

substitute 3. into eqn 1.

4x+2(-10-3x)=-12

4x-20-6x=-12

2x=-20+12

x=-4

y=-10-3(-4)=2

Answer Link

Otras preguntas

2/7(x+4)=−6 solve for x
ILL GIVE BRAINIEST TO WHOEVER IS CORRECT!! PLEASE HELP ASAP!!
Which of the following is true about the Calvin cycle? Rubisco fixes O2 to a carbohydrate molecule. Both ATP and NADPH are needed to make sugars. Light energy i
what is the environmental effect of 3NaCl
What is the slope of a line perpendicular to the line in the graph?
a statement that switches the hypothesis and conclusion and negates both
Its 7th grade math. help please
What is the simple interest formula? A.I=P-rt B.I=Prt C.I=P+r+t
Which European colonizer in the Carribean wasn't even a country? Question 4 options: France Spain The Netherlands Courland
How would you use a number line to order integers from greatest to least? A Graph the absolute values, then read them from left to right. B Graph the integers,