matokiwasssup matokiwasssup

13-03-2018
Mathematics

contestada

x+y= -9
x+2y= -25

According to the system of equations above, what is the value of y?

Respuesta :

evgeniylevi evgeniylevi

13-03-2018

Try this option:
if x+y=-9 is I (one)
and x+2y=-25 is II (two), then
if II-I, then (x+2y)-(x+y)=-25+9 ⇔ y=-16.

Answer Link

Otras preguntas

The receptive surface for pollen on an angiosperm flower is the (A) anther (B) corolla (C) ovary (D) style (E) stigma

How do bacteria that live deep below the ocean’s surface make food? a. by cellular respiration b. by chemosynthesis c. by photosynthesis d. They eat other organ

what were dr seuss strengths and struggles

Simplify the expression. 11c + 3(-5c + 4d)

Two squares have side lengths that are consecutive odd integers. The total area of the squares is 650cm^2. What is their total perimeter?

How did the Declaration of Independence happen

A number with two decimals places is multiplied by a whole number. The product has only two digits. How can you follow the correct procedure for placing the dec

How did the power of the English monarchy grow and change?

An equilateral triangle has a perimeter of 18cm. What is the length of one of its sides?

Which British dominion achieved independence in 1921-22, following the Easter Rising of 1916? a) the southern counties of Ireland b) Canada c) Ulster d) Ind