Question

Решите уравнения
4х+4х=424
15у-8у=714
9z+z=500
10k-k=702
4l+5l+l=1200
6t+3t-t=6400
И пожалуйста, по действиям

Answer 1

4х+4х=424
8х=424
х=424:8
х=53

15у-8у=714
7у=714
у=714:7
у=102

9z+z=500
10z=500
z=500:10
z=50

10k-k=702
9k=702
k=702:9
k=78

4l+5l+l=1200
10l=1200
l=1200:10
l=120

6t+3t-t=6400
8t=6400
t=6400:8
t=800

Answer 2

4x+4x=424
8x=424
x=424/8
x=53
15y-8y=714
7y=714
y=714/7
y=102
9z+z=500
10z=500
z=500/10
z=50
10k-k=702
9k=702
k=702/9
k=78
не поняла что написано
6t+3t-t=6400
8t=6400
t=6400/8
t=800