Solve for the variable. include which property you used in your work at each step

1. 42=-2d+6
2. 15=a/3-2
3. 9x/4=-9
4. 10(c-4) +2c = 12

(/'s mean fraction things like, a over 3 is a/3)

d=-18

a=51

x=-4

c=13/3

Step-by-step explanation:

1. subtract 6 from both sides

divide both sides by -2

2. add 2 to both sides

times both sides by 3

3. times both sides by 4

divide both sides by 9

4. multiply the 10 out into the parenthesis add the 10c and 2c to get 12 c

add 40 to both sides

divide both sides by 3