Question

Simplifique e resolva as equações
10x+4.(3-2×)-6=8
3.(5+3×)+5.(-x-1)=22
2.(9×-4)-7+(6-5×).3=18

Answer 1

10x + 12 - 8x - 6 = 8
10x - 8x = 8 + 6 - 12
2x = 14 -12
2x = 2
x = 2/2
x = 1

b) 15 - 9x - 5x - 5 = 22
-9x - 5x = 22 + 5 - 15
-14x = 27 - 15
-14x = 12
x = 12/-4
x = -4

Answer 2

10x+12-8x-6=8
10-8x=8+6-12
2x=2
2x=2\2
x =1

15-9x-5x-5=22
-9x- -5x=22+5-15
x=12\-4
x=-4