Question

A) 2 a - 3 = a + 5

B) -5 x + 3 -2 x = 0

C) -5b + 7 - 10= - 3b + 13 - 12

D) -x + 1= 3 x - 4

E) - x + 3 = 2 x - 1

F) 25- 3a +2 = - 2 a + 17​

Answer 1

a)2a-3=a+5

2a-a=5+3

a=8

b)-5×+3-2×=0

-7×=-3

×=-3/-7

×=3/7

c)-5b+7-10=-3b+13-12

-5b+3b=1+10-7

-2b=4

b=4/-2

b=-2

d)-×+1=3×-4

-×-3×=-4-1

-4×=-5

×=-5/-4

×=5/4

e)-×+3=2×-1

-×-2×=-1-3

-3×=-4

×=-4/-3

×=4/3

f)25-3a+2=-2a+17

-3a+2a=17-25-2

-a=-10 .(-1)

a=10

Answer 2

Resposta:

a)2a-3=a+5

2a-a=5+3

a=8

b)-5x+3-2x=0

-5x-2x=-3

-7x=-3 *(-1)

7x=3

x=3/7

c)-b+7-10=-3b+13-12

-b+3b=13-12-7+10

2b=4

b=4/2

b=2

d)-x+1=3x-4

-x-3x=-4-1

-4x=-5 *(-1)

4x=5

x=5/4

e)-x+3=2x-2

-x-2x=-2-3

-3x=-5 *(-1)

3x=5

x=5/3

f)25-3a+2=-2a+17

-3a+2a=17-25

-a=-8-2

-a=-10 *(-1)

a=10