radomes.openskiesproject.org
timothy566 timothy566
  • 31-12-2016
  • Mathematics
Answered

solve the system of equations below y=3/2x-2 and 2x+y=-4

Verified Answer :

campbellst2005 campbellst2005
  • 31-12-2016

rewrite the 2nd equation as 

y = -4 -2x

then substitute into the 1st equation so you get

\(-4 - 2x = \frac{3}{2} x - 2\)

then solve for x. 

when you get the value of x, substitute it into either equation to find y

hope it helps

Answer Link
apologiabiology
apologiabiology apologiabiology
  • 31-12-2016

since y=(3/2)x-2
subsitute 3/2x-2 for y in 2nd equation
2x+3/2x-2=-4
add 2 to both sides
2x+3/2x=-2
times  2 both sides
4x+3x=-4
7x=-4
divide both sides by 7
x=-4/7
sub that back
y=3/2x-2
y=3/2(-4/7)-2
y=-12/14-2
y=-6/7-2
y=-6/7-14/7
y=-20/7


(x,y)
(-4/7,-20/7)

Answer Link

Related Questions

A line passes through the points 46 and 62 Select Yes or No to tell whether each equation describes this line image attached
Which of these excerpts from HellHeaven by Jhumpa Lahiri most clearly celebrates cultural diversity
Sedentary lifestyles are harmful Sedentary lifestyles result in disease Which sentence most clearly combines these sentences into one cohesive thought
Choose the correct simplification of 5x2y3z46x3y4z2 30x5y7z6 30x6y12z8 11x5y7z6 11x6y12z8
Multiple Choice During the Apollo 15 mission an astronaut dropped a hammer and feather from the same height The objects reached the moons surface at the same ti
12 seventy fifths written as a decimal
What is the value of x
Let fx 3x 10 Find the value of f3
Write an equation for the translation of y x 13 units down A y 13x B y 13 x C y x 13 D y x 13
What are 2 consecutive intigers who sum 547