Question

Qual é o valor da incógnita ?
5(2x+7)-1=4(x-5)+9

Answer 1

5(2x+7)-1=4(x-5)+9
10x+35-1=4x-20+9
10x-4x=-20+9+1-35
6x=-55+10
6x=-45
x=-45/6
x=-7,5

Answer 2

(5.2x)+(5.7)-1 = (4.x)+4.(-5)+9
10x+35-1 = 4x-20+9
10x-4x = -20+9+1-35
6x= -55+10
6x = -45
x=45/6
x=7,5