IchikaKurama IchikaKurama

24-01-2017
Mathematics

contestada

3x + 2y = A 5x + y = B Eliminating the variable y from the system of equations results in -7x =
A) A - 2B
B) 2B - A
C) A + 2B

Respuesta :

24-01-2017

The answer is A
You would multiply the second equation by -2 to clear the 'y'.
This leaves -10x = 2B and 3x = A
When combining these we get -7x = A - 2B

Answer Link

Otras preguntas

What distinguishes classical civilizations from other civilizations

During which stage of the cell cycle are cell organelles (like mitochondria, lysosomes, ribosomes) separated into the two new cells? A. G2 B. S C. Cytokinesis

What is number 12 please answer quick

Does carbonhydrates provide the most energy or kilocalories per gram of food ?

Which statement about the free enterprise system is true? It allows the citizen to own government property. It exempts the citizen from taxes if that person ser

Dots sells a total of 265 T-shirts ($2) and shorts ($3). In April, total sales were $637. How many T-Shirts and shorts did Dots sell?

The scores for a bowling tournament are normally distributed with a mean of 240 and a standard deviation of 100 , Julian scored 240 at the tournament . What per

Conceited is to humble as jubilant is to A) Melancholy B) Gleeful C) Violent D) Fantastic Tell me why

ratio of 55 hours to 3 days

how many protons and electrons in Arsenic ion