cam9andyBernia cam9andyBernia

21-03-2016
Mathematics

contestada

use substitution to solve 3x+y=-3 y=x+5

Respuesta :

21-03-2016

3x + y = -3
y = x + 5
- x + y = - x + x + 5
-x + y = 5
3x + y = -3
-x + y = 5
3x + y = -3
3 * (-x + y) = 5
3x + y = -3
-3x + 3y = 5
4y = 2
4y/4 = 2/4
y = 1/2

Answer Link

Otras preguntas

You use a pulley system to lift a fallen tree . You apply a force of 50 N and the pulley pulls on the tree with a force of 1300 N what is the mechanical advanta

A country’s political system can affect its level of economic development

A real estate agent sells two sites for Rs. 18000 each. On one he gains 25% and on the other he loses 25 %. What is his loss or gain percent?

Use the list to answer the question. 1) East and West Germans tear down the Berlin Wall. 2)Estonia, Latvia, and Lithuania break away from the Soviet U

transform each polar equation to an equation in rectangular coordinates and identify its shape. (a) r=6 (b) r= 2 cos theta please show ur work

roxy put $750 in an account earning 3.45% interest. after 12 years how much money will she have

You and two friends (Adam and Alana) will only play a game if it is fair for all three of you. The game your friend has proposed is to roll two number cubes (nu

why does freedom of religion matter

really need help with my spanish work

Let me know the answer plz