Question

ME AJUDEM PORFAVOR URGENTE

Answer 1

b)

4x-2x=-4

2x=-4

x=-4/2

x=-2

a)

1 2 0 1 2

2 1 4 2 1

3 0 2 3 0

2.1.1+2.4.3+0.2.0-(2.2.2+1.4.0+0.1.3)=

2+24+0-(8+0+0)=

26-8=14

6x=14

x=14/6

x=7/3