Respuesta :
12 +3(2x-3) +4
multiply 3 by 2x and by -3
12 +6x -9 +4
6x+7
remember the distributive property
a(b+c)=ab+ac
and commutative property
a+b=b+a
so
distribute first
3(2x-3)=3(2x)+3(-3)=6x-9
now we have
12+6x-9+4
move like terms together
6x+12-9+4
add like terms
6x+7
the answer is 6x+7
a(b+c)=ab+ac
and commutative property
a+b=b+a
so
distribute first
3(2x-3)=3(2x)+3(-3)=6x-9
now we have
12+6x-9+4
move like terms together
6x+12-9+4
add like terms
6x+7
the answer is 6x+7