Question

utilizando funçoes,resolva as equaçoes a seguir
a 2x+9=13
b 3t-2=7
c 3(n-2)=15
D 2(3X+1)=-20

Answer 1

2x+9=13
2x=13-9
2x=4
X=4/2
X=2

3t-2=7
3t=7+2
3t=9
t=9/3
t=3

3(n-2)=15
3n-6=15
3n=15+6
3n=21
n=21/3
n=7


2(3x+1)=-20
6x+2=-20
6x=-20-2
6x=-22
X=-22/6
X=-3.66666....