Question

48. a) 2 + X = 7
___________________

b) 5x = 50
___________________

c) - 7x = 42
___________________

d) 3x - 24 = 0
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53. a) 2 - 3x = -9 - 4x
___________________

b) 350x - 500 = 100x + 750
___________________

c) X + 5,41 = 3,87
___________________

d) 3(2x - 1) = -2(x + 3)
___________________

e) 4(x + 10) - 2(x - 5) = 0
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ME AJUDEM PFV

Answer 1

a) x = 7-2
x = 5

b)5x = 50
x = 50/5
x = 10

c) -7x = 42
x = 42/-7
x = -6

d)3x - 24 = 0
3x = 24
x = 24/3
x = 8

53.a) 2 - 3x = -9 - 4x
-3x+4x = -9-2
x = -11

b) 350x - 500 = 100x + 750
350x - 100x = 750 +500
250x = 1250
x = 1250/250
x = 5

c) x + 5,41 = 3,87
x = 3,87 - 5,41
x = -1,54

d) 3(2x - 1) = -2(x + 3)
6x - 3 = -2x - 6
6x +2x = -6 + 3
4x = -3
x = -3/4
x = -0,75

e)4(x + 10) - 2(x - 5) = 0
4x + 40 -2x + 10 = 0
4x - 2x = 10 - 40
2x = -30
x = -30/2
x = -15

Answer 2

a) 2 + X = 7
    X = 7-2
    X = 5
b) 5x = 50 
X =50/5
X = 10________________

c) - 7x = 42 
__X=-42/7
    X=6_________________

d) 3x - 24 = 0
--3X=24+0
   X=24/3
    X=8

53. a) 2 - 3x = -9 - 4x 
      3x-4x= -9-2
      X=7

b) 350x - 500 = 100x + 750 
350x-100x=750+500
    250x= 1250
     x= 1250/250
       x=5

c) X + 5,41 = 3,87 
__x= 5,41-3,87
    x=1,54_________________

d) 3(2x - 1) = -2(x + 3) 
___________________

e) 4(x + 10) - 2(x - 5) = 0