Question 25917
-7(x+3)=42 means -7 multiplied by (x+3), so do each step in your head as:


-7 * +x --> -7x
-7 * +3 --> -21


so we get -7x-21 = 42
hence -7x = 42+21
-7x = 63
x = 63/-7
x = -9


jon.