neurotic neurotic

25-11-2020
Mathematics

contestada

Solve the simultaneous equations:

3a-2b=14
12a+9b=39

Respuesta :

meowmeow223334 meowmeow223334

25-11-2020

Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1

Answer Link

Otras preguntas

Find all solutions to the equation below on the interval 0, 2pi): sin 4x = - sqrt2/2

(1) Find an equation for the function graphed in the image, assuming there is no vertical stretch. (2) Determine the amplitude of the following function, showin

Mr. T's heart rate is low, but his blood pressure remains high. How could someone develop a high blood pressure without a high heart rate? the best answers. Cho

Question 3 of 10 The slope of the line below is 4. Which of the following is the point-slope form of the line? (-3,-4) A. y+4= -4(x+3) B. y-4 = -4(x-3) C. y+ 4

what type of treatments are contraindicated for clients with epilepsy

Which statement is true? 3x-4y=4 3x-4y=8

7 cm Four of these rectangles are put together as shown.

How does a fuse work? A.A material burn out when current is excessive. B.A materials burn out when resistance is excessive. C.A materials burns out when voltage

I need help please. This is education class

what is two plus two i will give brainiest