Question

Find the value of y in the following system of equations.

21x - 7y + 512= 141
13x + 9y - 5z = -19
192 8y + 232 = 30

Answer 1

21x - 7y + 512= 141 equals y= j^21x/7 + 53

13x + 9y - 5z = -19 equals y= -19/9 - 13x/9 + 5z/9

192 8y + 232 = 30 equals

x-3 = 6

4x=8

2x = 16

Answer 2

y=3x+53

y=-19/9 -13x/9 +5z/9

Explanation:

i only did one and two sorry:/