Решите уравнение (1 2/3х+6 5/42):2 3/4=3 1/11 /-дробь

Question

Решите уравнение (1 2/3х+6 5/42):2 3/4=3 1/11
/-дробь

Answer 1

(1 2/3х+6 5/42):2 3/4=3 1/11
1 2/3х+6 5/42=34/11*11/4
1 2/3х+6 5/42=8 1/2
1 2/3х=8 1/2-6 5/42
1 2/3х=8 21/42-6 5/42
1 2/3х=2 16/42
х=100/42:5/3
х=10/7
х=1 3/7

Answer 2

(2/3х + 5/7)*1/2*3/4
14+15х/21х * 1/2 * 3/4
14+15х/7х * 1/2 * 1/4
14+15х/56х

Comments

=3/11

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11(14+15х)=168х

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154+165х=168х

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165х-168х=-154

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-3х=-154

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х=154/3, х не= 0