edendunham24601 edendunham24601

26-02-2020
Mathematics

contestada

X=2y-4, 5x-6y=-8 I need to solve this using the substitution method

Respuesta :

gcantiga44 gcantiga44

26-02-2020

Answer:

x = 2

y = 3

Step-by-step explanation:

x = 2y - 4

5x - 6y = -8

Substitute for x.

5(2y - 4) - 6y = -8

10y - 20 - 6y = -8

4y - 20 = -8

4y = -8 + 20

4y = 12

y = 12 ÷ 4

y = 3

x = 2y - 4

x = 2(3) - 4

x = 6 - 4

x = 2

Answer Link

Otras preguntas

From the numbered list below, decide which of the items are representative of each of parts (a), (b), (c), and (d). (a)Advantages of cold working. (b)Advantages

Therefore you have no excuse, everyone of you who passes judgment, for in that which you judge another, you condemn yourself; for you who judge practice the sam

A company has preferred stock with a current market price of $18 per share. The preferred stock pays an annual dividend of 4% based on a par value of $100. Flot

A 55-kg person on skis starts from rest down a hill sloped at 35° from the horizontal. The coefficient of friction between the skis and the snow is 0.12. After

Suppose the dollar is currently worth 110 yen. Based on trade flows and inflation, if the U.S. trade deficit with Japan continues, and if U.S. inflation rates e

Recently, Jonesville County inhabitants have been embroiled in a controversy regarding the use of pesticides on crops grown in the county. The Jonesville Expres

What is the main reason mao zedong was able to make china communist?

In function main declare three integers a, b, and c. Call a function randomNumbers to assign a random number between 1 and 50 to each and return using pointer p

Regional Steel, Inc., and Overland Transport Company enter into a con-tract. Smooth Oil Corporation, which will indirectly benefit from the deal, is prevented f

According to Adam Smith, the "invisible hand" refers to the government's effort to always keep a check on the wealth creation of individuals, so that no one bus