Use gauss-jordan reduction to solve each of the following systems. (a) x1 + x2 = -1 4x1 – 3x2 = 3 (b) x1 + 3x2 + x3 + x4 = 3 2x1 – 2x2 + x3 + 2x4 = 8 3x1 + x2 + 2x3 – x4 = (c) x1 + x2 + x3 = 0 x1 - x2 – x3 = 0 (d) x1 + x2 + x3 + x4 = 0 2x1 + x2 - x₂ + 3x4 = 0 x₂ - 2x2 + x3 + x₂ = 0 |

fourth month

step-by-step explanation:

it is the one with the most keychains.

how is that middle school

step-by-step explanation:

the answer is a

step-by-step explanation:

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3