решите пожалуйста уравнения мне срочно надо!!!!!
1) 4x+4x=424, 2)15y-8y=714, 3) 9z+z=500, 4) 10k-k=702,
5) 4l+5l+l=1200, 6) 6t+3t-t=6400.
1) 4x+4x=424, 2)15y-8y=714, 3) 9z+z=500, 4) 10k-k=702,
5) 4l+5l+l=1200, 6) 6t+3t-t=6400.
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9к=702 702:9=78 к=78
8х=424
х=53
2)15y-8y=714
7у=714
у=102
3) 9z+z=500
10z=500
z=59
4) 10k-k=702
9k=702
k=78
5) 4l+5l+l=1200
10l=1200
l=120
6) 6t+3t-t=6400
10t=6400
t=640