Question

A,,q,s,h,K,m rpd va rog 35 de puncte va rog !!

Answer 1

a 7x-11=66
7x=66+11
7x=77
x=77:7
x=11

h. 17+4x=-31
4x=-31-17
4x=-48
x=-48:4
x=-12


k. 5x-6=2x
5x-2x=6
3x=6
x=6:3
x=2

q. 7x-19=3x-143
7x-3x=143-19
4x=124
x=124:4
x=31

Answer 2

3
a) 7x-11=66
7x=66+11
7x=77
x=77:7
x=11

h) 17+4x =-31
4x=-31-17
4x=-48
x=-48:4
x=-12

k) 5x-6 =2x
5x-2x=6
3x=6
x=6:3
x =2

m)
3x-4+5x=20
3x+5x=20+4
8x=14
x=24:8
x= 3

q)
7x -19=3x-143
7x-3x=-143+19
4x=124
x=124:4
x= 31

s)
-46 -17x =-10-11x
-17x+11x =-10 +46
-6x = 36
x=36:(-6)
x= -6