Question

resolva as operações. COM OPERAÇAO PESSOAL POR FAVOR

Answer 1

10-2x=3x
-2x-3x=-10
-5x=-10 .(1)
5x=10
x=10:5=2

x-3=6+4x
x-4x=6+3
-3x=9 .(1)
3x=-9
x=9:3=-3

(7x-8).2=6.(3x-4)
14x-16=18x-30
14x-18x=+16-30
-4x=-14 .(1)
4x=14
x=14:4

16x-6-7x=15+2x
16x-2x-7x=15+6
7x=21
x=21:7=3