robotbuttlove robotbuttlove

20-03-2018
Mathematics

contestada

solve this system of linear equations. separate the x- and y-values with a comma. 7x=-21-14y -19x=-63+14y

Respuesta :

mkryukova19 mkryukova19

20-03-2018

7x=-21-14y
-19x=-63+14y
We are adding 2 equations
7x-19x=-21-63-14y+14y
-12x = -84
x=7
going to find y:
7*7=-21-14y
49=-21-14y
70=-14y
y=-5
Answer (7,-5)

Answer Link

Otras preguntas

I am stuck on this question

Please solve the attachment below

If aqueous solutions of Na2CO3 and BaCl2 are mixed, which insoluble precipitate is formed? A. BaCO3 B. Ba2CO3 C. NaCl D. NaCl2 E. BaO

(a) Find parametric equations for the line through (3, 1, 8) that is perpendicular to the plane x − y + 4z = 7. (Use the parameter t.) (x(t), y(t), z(t)) = (b)

An industrial community has significant homelessness. The vaccination rate is low, and many people have chronic illnesses such as diabetes and depression. Whic

Before Maria starts her first year of college, Fred promises to give her $5,000 when she graduates. She goes to college, borrowing and spending far more than $5

The people of a previously quiet and peaceful country have come to recognize the need to expand and improve their security forces after a wave of terroristic th

Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66

Spell this word correctly. pro sēd'id NEXT QUESTION

why is the structure of a molecule important to its function