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

Boris has 12.92 centimeters of yarn. If he wants to make the yarn into pieces that are 0.38 centimeters long, how many pieces can he make?

Which one is a physical change? A. It Baking a cake. B. Dry Ice Subliming. C. Digesting a meal. D. Fermenting Grapes to wine. E. Ripening tomato.

What was the basis of the earliest explanations for the cause of abnormal behavior?

Why do the townspeople stone people in their community in the short story "The Lottery?"

Is −8 a solution to the equation 3x = 16 − 5x?? Step by step please!

Electrons orbit the nucleus in specific, defined paths. Each path has a specified energy.

How would you describe the taking of twenty-minute shower during a drought

X=5 2X+10=? I want to know what the answer is if x equals 5 so what is 2X plus 10

An air mass's relative humidity is a measure of how much water vapor it contains compared to how much it can contain Different types of air masses, with differe

what two things would cause the ppf of an economy to shift to the right outward?