hadel76 hadel76

27-01-2021
Mathematics

contestada

Determine what is the best method for solving each system, then solve the equation.
3x + y = 1
4x+y=-2

Respuesta :

reguser315 reguser315

27-01-2021

Addition/subtraction is probably the best method:

3x+y=1
4x+y=-2

Subtract them:

-x=1-(-2)
-x=3
x=-3

Plug in to find y:

3(-3)+y=1
-9+y=1
y=10

So the final answer is x=-3, y=10

Answer Link

Otras preguntas

rain forests are being cut down at an increasing rate. how does this affect the oxygen-carbon dioxide cycle?

Choose the standard form equivalent to f(x) = (x + 5)(x - 2) that correctly matches a key feature of the graph it represents. A f(x) = x2 + 3x – 10 highlights t

PLEASE HELP!!!! 25 POINTS!! very detailed explanation on how to find the square root of (whatever number you want) and the cube root of (whatever number you wan

i need help please thanks

what is the main source of energy in photosynthesis?

have you read the outsiders?

I need help please help anyone

Explain the importance of applied social sciences in understanding individual, group, and organizational issues and concerns.

I NEED HELP WITH number 5

Seeing that Fort Ticonderoga was on a major waterway, why was it a key location for the colonists to take?