Question

7-(2x-2) ⋅ (4x+1)=2x⋅(5-4x)

Answer 1

7-8x^2-2x+8x+2=10x-8x^2
-8x^2+8x^2+6x-10x=-7-2
-4x=-9
x=2.25

Answer 2

7-(2x-2) ⋅ (4x+1)=2x⋅(5-4x)
7-(8x^2-8x+2x-2)=10x-8x^2
7-8x^2+6x+2=10x-8x^2
10x-6x=7+2
4x=9
x=9/4
x=2,25
Ответ:x=2,25