Question

va rog ajutatima la matematica la ecuatii
4z-6 egal 194
20+8y egal140
35+5a egal 95

Answer 1

$4z-6=194 \\ 4z=200 \\ z=50 \\ \\ ========== \\ 20+8y=140 \\ 8y=120 \\ y=15 \\ \\ ========== \\ 35+5a=95 \\ 5a=60 \\ a=12$

Answer 2

4z-6=194
4z=194=6
4z=200
z= 200:4
z= 50

20+8y=140
8y=140-20
8y=120
y=120:8
y=15

35+5a=95
5a= 95-35
5a= 60
a=60:5
a=12