( 3/4х + 1/7х ) × 28 = 75.
25/28х × 28 = 75
25х = 75
х = 3.
(¾+1/7)х × 28 = 75
(21/28+4/28)х × 28 = 75
25/28х = 75 ÷ 28
25/28х = 2 19/28
х = 2 19/28 ÷ 25/28
х = 75/28 : 25/28
х = 75×28/28×25
х = 3
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Answers & Comments
( 3/4х + 1/7х ) × 28 = 75.
25/28х × 28 = 75
25х = 75
х = 3.
(¾+1/7)х × 28 = 75
(21/28+4/28)х × 28 = 75
25/28х × 28 = 75
25/28х = 75 ÷ 28
25/28х = 2 19/28
х = 2 19/28 ÷ 25/28
х = 75/28 : 25/28
х = 75×28/28×25
х = 3