Реши уровнения4х+4х=42415у-8у=7149z+z=50010k-k=7024L+5L+L=12006t+3t-t=6400

Question

Реши уровнения
4х+4х=424
15у-8у=714
9z+z=500
10k-k=702
4L+5L+L=1200
6t+3t-t=6400

Answer 1

1) 4x+4x=424
8x=424
x=424:8
x=53
2)15y-8y=714
7y=714
y=714:7
y=102
3)9z+z=500
10z=500
z=500:10
z=50
4)10k-k=702
9k=702
k=702:9
k=78
5)4l+5l+l=1200
10l=1200
l=1200:10
l=120
6)6t+3t-t=6400
8t=6400
t=6400:8
t=800