Question

розв'яжи рівняння 6+12х=5х+3, 8m=-2m+9, 2(x-3)=5x, 3(-x+2)= -(x-8)​

Answer 1

Пошаговое объяснение:

$1)6 + 12x = 5x + 3 \\ 12 x - 5x = 3 - 6 \\ 7 = - 3 \\ x = - \frac{3}{7} \\ \\ 2)8m = - 2m + 9 \\8 m + 2m = 9 \\ 10m = 9 \\ m = \frac{9}{10} = 0.9 \\ \\ 3)2(x - 3) = 5x \\ 2x - 6 = 5x \\ 2x - 5x = 6 \\ - 3x = 6 \\ x = - 2 \\ \\ 4) 3( - x + 2) = - ( x - 8) \\ - 3x + 6 = - x + 8 \\ - 3x + x = 8 - 6 \\ - 2x = 2 \\ x = - 1 \\ \\ \tuburetka$