what is 3x-2y=-12 y=2x-1?

Question

choices: -14, -7 ,14, or -3

Answer 1

3x - 2(2x - 1) = - 12
- x + 2 = - 12
- x = - 14
x = 14
y = 27

Answer 2

Thanks for a very simple question. Your question is about Simultaneous Equation topic. Follow my step below.

Firstly, mark both equation as (1) and (2):
3x - 2y = -12.....(1)
y = 2x - 1.....(2)

Then, we substitute equation (2) into the equation (1):
3x - 2y = -12
3x - 2(2x - 1) = -12
3x - 4x + 2 = -12
-x + 2 = -12
-x = -12 - 2
-x = -14
x = 14

Therefore, the answer is x = 14

I hope you got the best answer for your question. Have a nice day!

Answer 3

Choices for what? x or y?
================
Here's how to find the values of x AND y.
You are given y=2x-1. Multiply both sides of the equation by 2 to get
2y = 4x - 2 Add this to the other equation you were given:

3x-2y = -12
2y = 4x -2
-------------
3x - 2y + 2y = -12 + 4x - 2 Simplify this equation and you have the value of x. Then plug this value of x into the first equation to get y.

Answer 4

3x - 2y = -12 y=2x - 1
3x - (2 (2x - 1) = -12
3x -(4x - 2) = -12
3x -4x + 2 = -12
-1x + 2 = -12
12 + 2 = x
14 = x

Answer 5

a staggering thank you to start is via drawing a table of values. if x = -3 then y = 10.5 if x = -2 then y = 9 if x = -a million then y = 7.5 if x = 0 then y = 6 if x = a million then y = 4.5 if x = 2 then y = 3 and so on... Plot different those factors (-3, 10.5), (-2, 9)... and connect the standards ensuing in a at as quickly as line.

Answer 6

3x - 2(2x-1) = -12
3x -4x + 2 = -12
-x = -14
x = 14

y = 28 - 1
y = 27


14 is the answer

Answer 7

3x-2y=-12
(2x-y=1)-2

3x-2y=-12
-4x+2y=-2
-x=-14
x=14

3(14)-2y=-12
42-2y=-12
-2y=-54
y=27