Answer:
x = 0
Explanation:
-6(5x+6) => -6*5x + (-6)*6 => -30x-36
7(x-1) => 7*x + 7*(-1) => 7x -7
Put together:
-30x - 36 + 7x - 7 = -43
=> -23x - 43 = -43 (switch -43 to the other side)
=> -23x = -43 - (-43)
=> -23x = -43 + 43
=> -23x = 0
=> x = 0/-23
=> x = 0
Remember:
Switch side need to chage the number's sign
eg:
x + 1 = 0
=> x = -1
+ + = +
+ - = -
- - = + (important)
- + = -