jacquezlewis79 jacquezlewis79

23-06-2016
Mathematics

contestada

what is the solution to this linear equation?

y-4x=7
2y+4x=2

Relax

Respuesta :

23-06-2016

You can solve for y in the first equation

y = 4x + 7

Plug 4x + 7 instead of y in the second equation

2(4x + 7) + 4x = 2

Solve for x

x = -1

Plug -1 for x

y - 4 * -1 = 7

y = 3

Solution: (-1, 3)

Answer Link

Otras preguntas

1/4 how do u get 16 from it show me the calculations

Perform the following mathematical operation, and report the answer to the correct number of significant figures. 16.52 x 5.8 =

Molly has a container shaped like a right prism. She knows that the area of the base of the container is 12 in² and the volume of the container is 312 in'. Wha

(05.01 LC) NEED HELP ASAP ILL MARK BRAINLIEST IF CORRECT What is the slope of the line segment? 1/4 -1/4 4 −4

A car and an SUV both hit a patch of ice while driving eastbound down the road. The 1200-kg car was moving at 5 m/s when the 2600-kg SUV hit it from behind at a

What are the steps to solving this equation8(4-x)=7x+2

In classical physics, relative motion is absolute. For example, consider an object moving in a straight line with speed v0 on a platform. If the platform is mov

i chose x=3 , x=-4 which was wrong the correct answer is x=1 , x=-2can someone please explain how to get that answer

when and why did coal become popular

I'm sorry if you can't see the questions fully. But I answered the first and last one.