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Three consecutive even numbers add to 42. What is the middle number?

Translate into an algebraic expression:

One third of the difference of a number and 3 equals five times the number.

Pets Plus makes bird houses. Their monthly fixed expenses are $750. The cost for each bird house is $15. The bird houses sell for $40.

If Pets Plus sells 50 bird houses, what is the profit?

Solve _x_2 – 48 = 0.

The sum of four consecutive even integers is , but their product is . What is the least of those integers?

If 5 + x is 5 more than 5,what is the value of 2_x_?

Give the lines y = 0.5x+3 and y=3x-2. What is the y value of the point of intersection?

The sum of four consecutive even integers is , but their product is . What is the least of those integers?

If 7_x_ + y = 25 and 6_x_ + y = 23, what is the value of x?