How to find the solution to an equation

Practice Questions

SAT Math › How to find the solution to an equation

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1

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

2

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

3

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

4

Translate into an algebraic expression:

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

5

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?

6

Two cars start 25 mile apart and drive away from each other in opposite directions at speeds of 50 and 70 miles per hour. In approximately how many minutes will they be 400 miles apart?

7

Which of the following equations has as its solution set ?

8

The sum of two consecutive odd integers is 32. What is the value of the next consecutive odd integer?

9

Ben is walking three dogs that weigh an average of 75 pounds each. Ben begins to walk a fourth dog, and the average weight of the dogs decreases to 70 pounds. What is the weight in pounds of the fourth dog?

10

The Widget Company makes widgets. The monthly fixed costs are $750. It costs $45 to make each widget. The widgets sells for $75 a piece.

The Widget Company wants to make a profit of $3,000. How many widgets must be sold?

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