Question

Resolva as seguintes equações com uma incógnita. A) (12x-4)=(12-6x) B) (7x+ 5+6 x)=(4x-3+18) C) (18-14x+10)=(12-1+6x) (ME AJUDEM POR FAVOR)

Answer 1

$A)\ (12x-4)=(12-6x)\\\\12x-4=12-6x\\\\12x+6x=12+4\\\\18x=16\\\\x=\frac{16}{18}\\ \\x=\frac{8}{9}$

$B)\ (7x+ 5+6 x)=(4x-3+18) \\\\7x+ 5+6 x=4x-3+18\\\\13x+5=4x+15\\\\13x-4x=15-5\\\\9x=10\\\\x=\frac{10}{9}$

$C)\ (18-14x+10)=(12-1+6x)\\\\18-14x+10=12-1+6x\\\\28-14x=11+6x\\\\-14x-6x=11-28\\\\-20x=-17\ \ .\ (-1)\\\\20x=17\\\\x=\frac{20}{17}$