Answer:
a = 6
x = 5/4
x = -1
Step-by-step explanation:
1.
Distribute the negative sign.
- * 7 = -7
- * -a = a
a - 7 + a = 5
2a - 7 = 5
•Add seven to both sides.
2a = 12
a = 6
2.
Distribute the negative sign as we did for problem one.
-2 -x + 7
-x + 5 = 3x
Add x to both sides
4x = 5
x = 5/4
3.
As for the previous problems distribute the negative, remember this step is always imperative!
-3x -1 + 4 = 6
-3x + 3 = 6
Subtract 3 in both sides
-3x = 3
x = -1
Thanks!
