2112megadeath 2112megadeath

20-06-2017
Mathematics

contestada

Solve the system by substitution.

y = 2x
3x + 2y = 21

Respuesta :

20-06-2017

y=2x
3x+2y=21
3x+2(2x)=21
3x+4x=21
7x=21
x=3
y=2(3)
y=6

Answer Link

Otras preguntas

If Mercury, moved two orbital paths closer to the sun: what would be different? List serval differences, ideas.......

A neuron's a. cell body b. dendrite c. axon contains the nucleus and cytoplasm of the cell.

The primary reason ancient people of the Nile river valleys built leaves, dikes, and reservoirs was to?

Help me! 7 + x = 21 x = ?

how many rulers are in a wall of a small room

Is computer science really necessary?

Is a isosceles triangle with only one 70° angle unique?

what are various ways conquerors settled in the new world?

when sodium atom reacts with chlorine atoms form a compound, the electron configurations of ions forming the compound are the same as those in which noble gas a

How do entrepreneurs contribute to the nation economically