patelvruti2017 patelvruti2017

17-02-2019
Mathematics

contestada

Solve these simultaneous equations to find x and y.
Solve
4x+y=52
2x-y=20

Solve these simultaneous equations to find x and y Solve 4xy52 2xy20 class=

Respuesta :

17-02-2019

simply add the two equations to find x:

4x+y=52

+

2x-y=20

____________

6x=72 => x=72/6=12

the put x in one of the equations to find y:

4(12)+y=52 => y=52-48=4

Answer Link

Otras preguntas

A and B share the cost in a ratio of 3:2. the cost is £85; How much does A pay?

a tree is standing by the side of the building. 2/5th of the height of the tree is above the building level. the building is 9 metres high. what is the heigh

How do I say.. I'm Watching television in German?

What is 5x - 3 = 17?

I need help on question 5 please

how to do an analysis?

If T(n) = 2-7n, what is the 1st term?

a tree is standing by the side of the building. 2/5th of the height of the tree is above the building level. the building is 9 metres high. what is the heigh

how to do an analysis?

I don't know if I'm right but, is this "No Solution", or am I wrong?....Please Help! (;