Solve the system of linear equations using Gaussian or Gauss-Jordan elimination (row echelon form, then substitute). Check your answer in your calculator when finished.
1) x + 4y = 20
2x + 5y + 4z = 20
2x - 2y + 3z = -6

c) yes, because of asa or aas

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

what steps are you having us

step-by-step explanation: