Question

Me ajudem nessas equaçoes pfrv?!!!

Answer 1

Oi

a)
6x+500=x+2500
6x-x=2500-500
5x=2000
..x=2000/5
..x=400

b)
4(x-5)+x-6=16-2x
4x-20+x-6=16-2x
4x+x+2x=16+20+6
7x=42
..x=42/7
..x=6

c)
11(x+2)-410=2(2x-4)+89
11x+22-410=4x-8+89
11x-4x=-8+89-22+410
7x=469
..x=469/7
..x=67

d)
2x+10=38
2x=38-10
2x=28
..x=28/2
..x=14

e)
6x+14+3x=2x+158-x
6x+3x-2x+x=158-14
8x=144
..x=144/8
..x=18

f)
20x+19-5x=7x+31+2x
20x-5x-7x-2x=31-19
6x=12
..x=12/6
..x=2