substitusikan persamaan berikut 1) 8x-7=3+13x 2) 10-3x = 2(x + 3)+5

1.
8x -7 = 3 + 13x
8x -13x = 7 + 3
-5x = 10
x = -2

2.
10 - 3x = 2(x + 3) +5
10 -3x = 2x + 6 + 5
10 - 6 - 5 = 2x + 3x
-1 = 5x
-0,2 = x