-3x + 4 = 5x - 12
-3x - 5x = -12 - 4
-8x = -16
x=2
2) 4x - 7 = -2x +5
4x+2x = 5+7
6x=12
x=2
3) 3x-5x+6 = -4x+5+3x
3x-5x+4x-3x=5-6
-1x=-1
x=1
4) 2 - 4x -3x = 2x - 3x - 5
-4x - 3x -2x +3x= -5 -2
-6x= -7
x=7/6
1) y'= 3^x * ln3 -2
2)y'=5^6x-1 * ln5*(6x-1)' +e^3x * (3x)' = 5^6x-1 * 6ln5 + 3e^3x
<span>3)y=log3*(x^2+2x+4)
y'= 1/[(x</span>²+2x+4)*ln3] *(2x+2)
<span>
4)y=ln*(x^2-3x)+cos3x
y'= 1/(x</span>²-3x) * (2x-3) -sin3x * 3