cianaivetteromany cianaivetteromany

21-02-2017
Mathematics

contestada

What is the y-coordinate of the solution to the system of equations? 4x + y = 4 3x - 5y = - 43

Respuesta :

texaschic101 texaschic101

21-02-2017

4x + y = 4......multiply by -3
3x - 5y = -43.....multiply by 4
----------------
-12x - 3y = -12 (result of multiplying by -3)
12x - 20y = - 172 (result of multiplying by 4)
---------------add
-23y = - 184
y = -184/-23
y = 8 <====

Answer Link

Otras preguntas

True Or False The State of the Union address is important because it only addresses the strengths and successes of the previous years.

Your teacher has asked you to write a composition describing your ideal house.(120-180 words) Please!! Make for me a good text with title "Ideal House"!!!!!

? x 5/7=30/7 or 4 2/7 ?

What is 9/10 minus 2/5 equals? Steps I need to show.

What is a wide, flat area on Earth's surface?

identify the 6 properties of ionic compounds

i am a factor of 50 and a multiple of 5. i am a 2-digit number greater than 10 but less than 40. what number am i ?

A chloride dissolves in water to form a colored solution. The chloride could be (1) HCl (2)KCl (3)CaCl2 (4)NiCl2

solving quadratic equations: x² + 6x + 5 = 45

0.7 is 10 times as much as