Solve systems of two linear equations by using the linear combination method

1). 3x+2y=6

-6x-3y=-6

2). 7x-4y=-3

2x+y=15

3). 5x+6y=-16

2x+10y=5

4). -15x-2y=-31

4x+6y=11

5). 7x+2y=-3

-14x-4y=6

6). -5x+2y=-10

3x-6y=-18

solve using either algebraic method (substitution or combination)

1). x-y=3

-2x+2y=-6

2). -3x+y=11

5x-2y=-16

3). x-4y=-3

-3x+8y=-1

4). -3x+7y=6

5x-y=10

5). 3x-7y=20

-11x+10y=5

6).4x+9y=-10

-8x-12y=8

7). -x+5=17

2x-10y=-34

2 x t divided by n

step-by-step explanation:

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step-by-step explanation:

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the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is