Question

Se log (3×+23) - log (2×-3) = log 4 encontre o ×

Answer 1

log (3×+23) - log (2×-3) = log 4

log (3×+23)/(2×-3) = log 4

(3×+23)/(2×-3) = 4

4(2x-3) = (3x+23)

8x-12 = 3x+23

8x -3x = 23 +12

5x = 35

x = 7 ✓