Решите уравнение 1)7(х-19)=133 2)9(213-2х)=927 3)1344/(х+26)=32 4)384/(51-5х)=24

Question

Решите уравнение
1)7(х-19)=133
2)9(213-2х)=927
3)1344/(х+26)=32
4)384/(51-5х)=24

Answer 1

1) 7×(х-19)=133
х-19=133÷7
х-19=19
х=19+19
х=38
2) 9×(213-2х)=927
927÷9=13
213-2х=13
2х=213-13
2х=200
х=200÷2
х=100
3) 1344÷(х+26)=32
х+26=1344÷32
х+26=42
х=42-26
х=16
4)384÷(51-5х)=24
51-5х=384÷24
51-5х=16
5х=51-16
5х=35
х=35÷5
х=7

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