Question

Tolong bantu nomor 1dan2

Answer 1

1.
a)
3x+2 = 14
3x = 14-2
3x = 12
x = 12/3
x = 4


b)
15+2y = 7
2y = 7-15
2y = -8
y = -8/2
y = -4



2.
a)
9x-8 = 13x-28
9x-13x = -28+8
-4x = -20
x = -20/-4
x = 5


b)
4x-5 = 8x+23
4x-8x = 23+5
-4x = 28
x = 28/-4
x = -7

Answer 2

1. a) 3x + 2 = 14
        3x = 14 - 2
        3x = 12
          x = 12/3 
            x=4 

b) 15 + 2y = 7 
     2y = 7-15
    2y = -8
      y = -8/2
      y = -4

2. a) 9x - 8 = 13x - 28
        9x - 13x = -28 + 8
        -4x = -20 
           x = -20/-4
           x = 5
 
b) 4x - 5 = 8x + 23
    4x - 8x = 23 + 5
          -4x = 28
              x = 28/-4
               x= -7