9514 1404 393
Answer:
put the value into the equation and do the arithmetic
Step-by-step explanation:
As with any checking, you put the value where the variable is and do the arithmetic.
7(2x +5) = 11x -9 -x
For x = -11
7(2(-11) +5) = 11(-11) -9 -(-11)
7(-22 +5) = -121 -9 +11
7(-17) = -119
-119 = -119
The value x = -11 makes the equation true.
