Question

Resolva as equações:
a) 5x - 40 = 2-X
b) 20 + 6x = -2x + 26
c) 3,5x + 1 = 3 + 3,1x
d) 7p + 15 - 5p 10 = - 17 + 13p
e) 13y - 5 = 11 + gy​

Answer 1

a)5×-40=2-×

5×+×=40+2

6×=42

×=42/6

×=7

b)20+6×=-2×+26

6×+2×=26-20

8×=6

×=6/8(:2)

×=3/4

c)3,5×+1=3+3,1×

3,5×-3,1×=3-1

0,4×=2

×=2/0,4

×=5

d)7p+15-5p.10=-17+13p

7p-13p-50p=-17-15

-56p=-32 .(-1)

56p=32

p=32/56 (:4)

p=8/14 (:2)

p=4/7

e) não entendi a questão.