Answer:
x = -3
Step-by-step explanation:
-8(x + -7) = 80
Multiplication signs rule:
+ * - = -
- * - = +
Then:
-8(x - 7) = 80
-8*x -8*-7 = 80
-8x + 56 = 80
-8x = 80 - 56
-8x = 24
x = 24/-8
Check:
-8(-3-7) = 80
-8(-10) = 80
