cuantos es x-8x-4+7=18+3x+6
x-8x-4 +7 = 18 +3x +6
-7x + 3 = 3x + 24
-3 -3
-7x = 3x + 21
-3x -3x
-10x = 21
-(-10x = 21)
10x = -21
÷10 ÷10
x = -21/10
x = -2.1
verificar:
(-2.1)-8(-2.1)-4+7=18+3(-2.1)+6
-2.1 +16.8 -4 + 7 = 18 + (-6.3) + 6
17.7 = 17.7
