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

Math question please answer

Many people work near a source of nuclear radiation to detect the amount of exposure they have to radiation they most likely will use a

What was the new theory that was developed of the continental drift?

What term describes the ability of the heart and lungs to supply oxygen to the muscles for a long period of time? Question 1 options: Flexibility

Jose bought 1.5 pounds of apples for $3.60. How much would 3/4 of a pound of apples cost? Enter your answer in the box.

In a plant that has red flowers, red flower color, R, is completely dominant to white flower color, r. If the plant is heterozygous for flower color, which all

I NEED HELP DON'T UNDERSTAND only question 14

sentence using the words loaf and swallow

Question from Campbell Biology Chapter 16: 57) The spontaneous loss of amino groups from adenine in DNA results in hypoxanthine, an uncommon base, opposite thym

Mi primo y yo conocemos a los jugadores del real madrid. Ellos A) son espanol B) somos espanol C) son spanoles D) somos espanoles