Пошаговое объяснение:
№1
4(х - 50) = 3х
4х - 200 = 3х
4х - 3х = 200
х = 200
-2(2х + 4) = -3х
-4х - 8 = -3х
-4х + 3х = 8
-х = 8
х = -8
№2
3(х + 7) = 4(х - 6)
3х + 21 = 4х - 24
3х - 4х = -24 - 21
-х = -45
х = 45
3(3х - 1) + 5 = 8(х + 2) + 3
9х - 3 + 5 = 8х + 16 + 3
9х + 2 = 8х + 19
9х - 8х = 19 - 2
х = 17
Ответ:Пошаговое объяснение:
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Пошаговое объяснение:
№1
4(х - 50) = 3х
4х - 200 = 3х
4х - 3х = 200
х = 200
-2(2х + 4) = -3х
-4х - 8 = -3х
-4х + 3х = 8
-х = 8
х = -8
№2
3(х + 7) = 4(х - 6)
3х + 21 = 4х - 24
3х - 4х = -24 - 21
-х = -45
х = 45
3(3х - 1) + 5 = 8(х + 2) + 3
9х - 3 + 5 = 8х + 16 + 3
9х + 2 = 8х + 19
9х - 8х = 19 - 2
х = 17
Ответ:Пошаговое объяснение:
№1
4(х - 50) = 3х
4х - 200 = 3х
4х - 3х = 200
х = 200
-2(2х + 4) = -3х
-4х - 8 = -3х
-4х + 3х = 8
-х = 8
х = -8
№2
3(х + 7) = 4(х - 6)
3х + 21 = 4х - 24
3х - 4х = -24 - 21
-х = -45
х = 45
3(3х - 1) + 5 = 8(х + 2) + 3
9х - 3 + 5 = 8х + 16 + 3
9х + 2 = 8х + 19
9х - 8х = 19 - 2
х = 17