1) 2x + 5 + x + 14 + 6x = 64
2) 1, 8 + 3, 5y + 0,9 + y = 16,2
3) 4 1/2z + 7/9z + 2 1/3 + 1/6z = 5 1/18.
2) 1, 8 + 3, 5y + 0,9 + y = 16,2
3) 4 1/2z + 7/9z + 2 1/3 + 1/6z = 5 1/18.
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Answers & Comments
9х+19=64
9х=64-19
9х=45
х=45:9
х=5
2) 1, 8 + 3, 5y + 0,9 + y = 16,2
4,5у+2,7=16,2
4,5у=16,2-2,7
4,5у=13,5
у=13,5:4,5
у=3