tolong di kerjakan no 5,6,7

7.b
4x + 3 = 2x -5
4x-2x = -5 - 3
2x. = -8
X. =-8 : -2
=4

5.a.2x-1<3
<=>2x<3+1
<=>2x<4
<=>x<4/2
<=>x<2
b.3x+2>5
<=>3x>5-2
<=>3x>3
<=>x>3/3
<=>x>0
maaf cuma nomor itu aja yang saya tau