Question

Resolva as equações 10.2x-1=10

Answer 1

10.(2x)-1=10
20x=11
x=$\frac{11}{20}$

Answer 2

10 * 2^x+3 = 10 
5 * 2^x+4 = 2 * 5 
x + 4 = 1 
x = -3