imaniee19 imaniee19

22-01-2020
Mathematics

contestada

9a-2b = -8
-7a + 3b = 12

Respuesta :

hirafathima358 hirafathima358

22-01-2020

9a-2b=-8.....1
-7a+3b=12.....2

So,
1 equation into 3 and 2 equation into 2.

Then,
18a-6b=-24
-14a+6b=24.

4a=0 a=0 .

Substitute a value in 2 equation.

b=4.

Hope it helped

Answer Link

Otras preguntas

Cuando era niña, (1) (vivir) con mis padres y mis hermanos. Yo soy la mayor. Mi madre empezó a trabajar cuando yo (2) (tener) doce años, así que yo (3) (cuidar)

Proteins are built from amino acids. Proteins that contain the amino acids tryptophan, phenylalanine, and tyrosine can be quantified using UV spectroscopy and d

What is the interquartile range of the following data set? 13, 17, 18, 15, 12, 21, 10

help please Compute the volume of a sphere with a radius of 6 inches. a. 864π in3 b.72π in3 c. 216π in3 d. 288π in3

First Glimpse [1] The first time Lila stirred, she opened one eye and squinted toward the window. Dark shadows hung in the corn

Trujillo es un destino popular para los ecoturistas que visitan la selva. cierto falso 2. Mario Vargas Llosa es un novelista peruano famoso. cierto falso 3

At www.daveramsey’s Financial Peace University (FPU), Dave recommends Seven Baby Steps. One of these steps is “Pay off debt using the debt snowball.” After grad

Which inequality has -25 in its solution set?

Please help me as fast as you can

List the following events in the correct chronological order.The Boston Massacre occurred.Chief Pontiac led a rebellion.The French and Indian War ended.