Question

a) 3x+ 6=12
b) 2x+6=-12-4x
c) 3(2x)+10=2x(4)-10
d) 2(4x+2)+8=10-4x
e) 3(5x+6)-2x=2(2x+4)+9
f) 2x+4/2 = 3x+6/1​

Answer 1

A) 3x+ 6=12

3x=12-6

3x=6

x=6/3

x=2

b) 2x+6=-12-4x

2x+4x=-12-6

6x=-18

x=-18/6

x=-3

c) 3(2x)+10=2x(4)-10

6x+10=8x-10

6x-8x=-10-10

-2x=-20

x=-20/-2

x=10

d) 2(4x+2)+8=10-4x

8x+4+8=10-4x

8x+4x=10-4-8

12x=-2

x=-2/12

x=-1/6

e) 3(5x+6)-2x=2(2x+4)+9

15x+18-2x=4x+8+9

15x-2x-4x=8+9-18

9x=-1

x=-1/9

f) 2x+4/2 = 3x+6/1​

2x-3x=6/1-4/2

-x= 12-4/2

-x=8/2

-x=4

x=-4