Xghoued6766 Xghoued6766

21-10-2017
Mathematics

contestada

Determine whether (7,9) is a solution of 7x+2y= −7.

Respuesta :

texaschic101 texaschic101

21-10-2017

we can check by subbing in the values.

7x + 2y = -7
(7,9).....x = 7 and y = 9
now we sub
7(7) + 2(9) = -7
49 + 18 = -7
67 = -7 (incorrect)....therefore, (7,9) is NOT a solution for this equation

Answer Link

Otras preguntas

What is 2.2 as a fraction in the simplest form

How are the Athenian values of rule of law and citizenship expressed in modern representative democracies such as the one practiced in the United States?

Which of the following events occurred after the start of the Revolutionary War?

Who wrote these words about the events at Appomattox Courthouse in April 1865? General George McClellan General Ulysses S. Grant Secretary of War Edward M. Stan

The Compromise of 1850 included the idea of popular sovereignty. Which of the choices below best explains its meaning? Voters of a state will choose representat

What does it mean for a product of factors to be expressed using exponents

ella has 50 stacks of ten pennies in each stack. Describe how to find how many pennies ella has in all.

What is an antonym for biomes

in a fruit salad there are 12 strawberries 14 grapes and 6 kiwis and 4 papayas. find the ratio of kiwis to the total number of pieces of fruit salad. write the

a fountain can hold 53,000 deciliters of water. how many kiloliters is this ?