Which property of mathematics is illustrated by the equation? 7f+(-7f) = 0
O Distributive Property
Commutative Property of Addition
Additive Inverse Property
Additive Identity Property
Associative Property of Addition

it should be a and d. lmk if i'm wrong xd

lol we need to see what the question is asking about

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

9x