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

What roles does the society have to solve the problem?

Julian made 4 identical necklaces, each having beats and a pendant. The total cost, if the beads and pendants for all 4 necklaces was $28.80 dollars, if the bea

The first decision is a choice between y = acos[b(x – h)] k and y = asin[b(x – h)] k. Starting at the green point, which general pattern does the graph follow?.

If a car stops suddenly, seat belts help stop the motion of the people in the car. Seat belts in cars are usually 47 mm wide.A team of engineers is designing a

please help asap help

HELP PLEASE WUICKKY GIVJNG BRAINLIEDT AND EXTRA POINTSZZ A shipping box in the shape of a rectangular prism has a volume of 15,000 cm3. The length of the box is

Why did napoleon invade Spain in 1808 and did it work , explain

Which best defines counterterrorism?an attempt by governments to identify terroriststhe use of political tactics to prevent terrorist attacksthe application of

HELP ASAP WORTH 10 POINTS

The temperature of a solid at time t ≥ 0 is modeled by the nonconstant function H and increases according to the differential equation dHdt=2H+1 , where H(t) is