Marissababy Marissababy

03-05-2017
Mathematics

contestada

8x-9y=19 4x+y=-7 How Do I Do This Type Of Math

Respuesta :

mreijepatmat mreijepatmat

03-05-2017

8x-9y=19
4x+y=-7
Multiply all terms of the 2nd by (9)===> 36x + 9y= 63

add (36x 9y= 63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3

Answer Link

Otras preguntas

(PRE CALC) How can the logarithmic expression be rewritten? Select True or False for each statement.

g(-4) = "-5," g (3) = "-1." Write a linear function f with the given values.

how did World War 1 start? pl-z help

At the craft show, Mai purchases rings and bracelets. Rings cost `\$1` each and bracelets cost `\$2` each. Mai spends a total of `\$20` on these items. Let `r`

Write 1 paragraph to explain the historical circumstances of the Russian Revolution and Lenin’s rise to power.

1. Draw the equilibrium mechanism between caffeine and aqueous acid. 2. Using resonance structures, explain why one nitrogen is more basic than the others. (Hin

Engagement measures all of the following except Multiple Choice O whether or not people engage in conversation by commenting. O how many times people purchase f

2. Determine the lateral and total surface area of the pyramid. 6.9 cm 8 cm Lateral Surface Area Total Surface Area

What are the four career pathways that most closely align with FCCLA

Which statements about the line that passes through (−2, 0) and (2, −4) aretrue? Select all correct statements. * 15 points The slope of the line is 1. The line