Question

2(4x+3)-3(x+2)-21=
și cum se rezolvă​

Answer 1

f) 2[4(x-2)+16] = 6(x+5)

2(4x-8+16) = 6x+30

2(4x+8) = 6x+30

8x+16 = 6x+30

8x-6x = 30-16

2x = 14

x = 7.

Answer 2

2×(4x+3)-3×(x+2)-21=

=(5x+1)-2+3-21=

=(5x+1)=5+21=

=5x+1=26

=5x=25=>X=5

2×(4×5+3)-3×(5+2)-21=

=2×23-3×7-21=

=46-21-21=

=25-21=

=4

Nu stiu daca este corect dar sper ca te-am ajutat!