Question

e) - x - 2x - 4 = 11

f ) 8x = 5x + 4,5

Me ajudem plmrdds! :^

Answer 1

$- x - 2x - 4 = 11 \\ - 3x = 11 + 4 \\ x = 15 \div 3 \\ x = 5 \\ \\ 8x = 5x + 4.5 \\ 8x - 5x = 4.5 \\ 3x = 4.5 \\ x = 4.5 \div 3 \\ x = 1.5$

Answer 2

e) - x - 2x - 4 = 11
-3x= 11+4
-3x= 15 .(-1)
3x= -15
x= -15/3
x= -5

f ) 8x = 5x + 4,5
8x-5x= 4,5
3x= 4,5
x= 4,5/3
x= 1,5