Question

.
Indicate which property is illustrated in Step 1.

Step 1 11 + 9x - 11 - 5x + 6 = 11 + (9x - 11) - 5x + 6
Step 2 = 11 + (-11 + 9x) - 5x + 6
Step 3 = [11 + (-11)] + (9x - 5x) + 6
Step 4 = 0 + (9x - 5x) + 6
Step 5 = (9x - 5x) + 6
Step 6 = (9 - 5)x + 6
Step 7 = 4x + 6


1.
Indicate which property is illustrated in Step 1.

Step 1 11 + 9x - 11 - 5x + 6 = 11 + (9x - 11) - 5x + 6
Step 2 = 11 + (-11 + 9x) - 5x + 6
Step 3 = [11 + (-11)] + (9x - 5x) + 6
Step 4 = 0 + (9x - 5x) + 6
Step 5 = (9x - 5x) + 6
Step 6 = (9 - 5)x + 6
Step 7 = 4x + 6

a commutative
b asso