Question

Alguem me ajuda com essas equaçoes

3x+4 = 16

2x-3 = x+1

3(x+4) = 2(x-2)

4(2x+1) = 3(x-2)

Answer 1

3x+4=16
3x=-4+16
3x=12
x=12/3
x=4

2x-3=x+1
2x-x=+3+1
x=4

3(x+4)=2(x-2)
3x+12=2x-4
3x-2x=-12-4
x=-14

4(2x+1)=3(x-2)
8x+4=3x-6
8x-3x=-4-6
5x=-10
x=-10/5
x=-2

Answer 2

4,4,8,-2 são as respostas