ambmundle ambmundle

01-03-2017
Mathematics

contestada

how to use substitution for 4x+3y=13 and x+y=4

Respuesta :

wolf1728 wolf1728

04-03-2017

A) 4x + 3y = 13
B) x + y = 4
B) x = 4 -y Then we substitute this into Equation A

A) 4 (4-y) + 3y = 13
A) 16 -4y +3y = 13
A) -y = -3
y = 3
x = 1

Answer Link

Otras preguntas

need help! plz!!!!!!!

Does anyone know anything about the Attack on Mexico ?

Which statement regarding the interior and exterior angles of a triangle is true? An exterior angle is supplementary to the adjacent interior angle. An adjacen

Plz need helpkkkkkssosp

Overall health is related to a balance of the six dimensions of health. Please select the best answer from the choices provided. T F

Select the absolute phrase in this sentence. His chubby legs pumping, the baby toddled across the room with his first wobbly steps.

A bottle of ketchup holds .946 liters. How many milliliters of ketchup are in the bottle?

what indicated mlk is writing his letter to an audience other than his fellow clergymen?

The density of glycerin is 1.26 g/cm3. Which substance will sink in glycerin?

Which of the following is not one of the four main types of tissues? basement epithelial connective muscle