Пошаговое объяснение:
№1
(3х - 7)/8 - (х - 3)/6 = 1 | * 24
3(3х - 7) - 4(х - 3) = 24
9х - 21 - 4х + 12 = 24
5х - 9 = 24
5х = 24 + 9
5х = 33
х = 33 : 5
х = 6,6
№2
(3х + 4)(4х - 3) - 5 = (2х + 5)(6х - 7)
12х² - 9х + 16х - 12 - 5 = 12х² - 14х + 30х - 35
12х² + 7х - 17 = 12х² + 16х - 35
7х - 17 = 16х - 35
7х - 16х = -35 + 17
-9х = -18
х = -18 : (-9)
х = 2
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Verified answer
Пошаговое объяснение:
№1
(3х - 7)/8 - (х - 3)/6 = 1 | * 24
3(3х - 7) - 4(х - 3) = 24
9х - 21 - 4х + 12 = 24
5х - 9 = 24
5х = 24 + 9
5х = 33
х = 33 : 5
х = 6,6
№2
(3х + 4)(4х - 3) - 5 = (2х + 5)(6х - 7)
12х² - 9х + 16х - 12 - 5 = 12х² - 14х + 30х - 35
12х² + 7х - 17 = 12х² + 16х - 35
7х - 17 = 16х - 35
7х - 16х = -35 + 17
-9х = -18
х = -18 : (-9)
х = 2