1)-3(x-1)=24-10x 2)2(4x+5)-3(x+6)=9x+8
Ответ:
x=3; x=-4
Пошаговое объяснение:
-3(x-1)=24-10x
-3x+3=24-10x
-3x+10x=24-3
7x=21
x=3
2(4x+5)-3(x+6)=9x+8
8x+10-3x-18=9x+8
8x-3x-9x=8-10+18
-4x=16
x=-4
1)-3(x−1)=24−10x
-3x + 3 = 24 - 10x
10x - 3x = 24 - 3
7x = 21
x = 21 : 7
x = 3
2) 2(4x+5) − 3(x+6) = 9x + 8
= 8х + 10 - 3х - 18 = 9х + 8
= 5х - 8 = 9х + 8
= 5х - 9х = 8 + 8
= -4х = 16
+ х = -4