How many solutions do each of these systems have ?
1. y=3/4x-5
-3x+4y=-20

2. x+4y=6
y=2x-3

3. 6x+3y=-12
y=-2x+4

1-3 either have
a. one solution
b. two solutions
c. an infinite number
d. no solution

1. C

2. A

3. D

Step-by-step explanation:

1. The equations will have the same exact line. This is infinite solutions.

-3x + 4y = -20 converts to y = 3/4x - 5

2. To solve the system, substitute y = 2x - 3 into the equation x + 4y = 6.

x + 4(2x-3) = 6

x + 8x - 12 = 6

9x - 12 = 6

9x = 18

x = 2

This system has one solution.

3. The equations will have the same slope. This means no solution is possible.

6x + 3y = -12 converts to y = -2x - 4

in mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. there are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. the set of candidate solutions that satisfy all constraints is called the feasible set.

hoped i'm right lol

answer: what are the answer choices?

step-by-step explanation: