02-06-2017
Mathematics

contestada

What is the solution to the system of equations x-y=-1 and x-3y = 13

Respuesta :

Osiris7 Osiris7

02-06-2017

Using process of substitution.

x-y+y=-1+y

x=-1+y

Now substitute into x-3y=13

-1+y-3y=13
-1+1-2y=13+1
-2y=14

y=-7

Therefore, x= -8

Answer Link

Otras preguntas

The last of Wilson's Fourteen Points called for

What is the value of the expression shown below when a=51, b=2, and c=17? 3(a\c)^2

1.How and why did the universe begin?2.Whats the point of life? Why are we here?3.Are we alone in the universe?4.Are moral values relative or absolute?5.Should

A pea plant is heterozygous for height (Tt). Which allele will be carried by a pollen grain produced by the plant? A.T only B.t only C.T and t D.T or t

Any facts on string art? I can't find any!

Give all solutions if the nonlinear system of equations, including those with no real complex components. y=x^2+6x 4x-y=-24

fun facts about Uranus the planet?

When the following is balanced, C₄H₁₀ + O₂ → CO₂ + H₂O, what is the coefficient of CO₂? a. 2 b. 4 c. 8 d. 10 e. 13

Which term describes the example below? A child with a widow’s peak has a mother who is homozygous dominant for a widow’s peak and a father who is homozygous do

Suppose x + y = 6 and xy = 4. Find the value of x² y + xy² without solving the equations.