Question

Решите уравнения -8(3+х)+х=4 6х-8(-7+9х)=-2х-8 -2х+1+5(х-2)=-4(3-х)+1

Answer 1

-8 (3+x)+x=4 6x-8(-7+9x)=-2x-8
-24-8x+c=4 6x+56-72x=-2x-8
-7x=4+24 6x-72x+2x=-8-56
-7x=28 -64x=-64
x=28/-7 x=-64/-64
x=-4 x=1

-2x+1+5(x-2)=-4(3-x)+1
-2x+1+5x-10=-12+4x+1
-2x+5x-4x=-12+1-1+10
-x=-2
x=2

Answer 2

-8(3+x) + x = 4 + 6x -24 - 8x + x = 4 + 6x -8x + x - 6x = 4 + 24 -13x = 28 x = -28/13

-8(-7+9x) = -2x - 8 56 - 72x = -2x - 8 -72x + 2x = -8 - 56 -70x = -64 x = 64/70 x = 32/35

-2x + 1 + 5(x-2) = -4(3-x) + 1 -2x + 1 + 5x - 10 = -12 + 4x + 1 3x - 9 = 4x - 11 3x - 4x = -11 + 9 -x = -2 x = 2

Таким образом, решения уравнений: x = -28/13, x = 32/35, x = 2