3x + 4 = 13

By adding - 4 to both sides of the equation we say that + 4 and - 4 on the left side of this equation? each other out.

Algebra

Solve these simultaneous equations: 5x+2y=24 and 4x+3y=10

What are the solutions of 12 - x2 = 0? O x=25 and x = - 2/3 O x = 3/and x = - 372 O x = 4,5 and x = - 4/3 O x = 6 and x = - 6

The length of a rectangle is four times its width. If the perimeter of the rectangle is 60 cm, find its area.

Angles ABC and DBE are vertical angles. If the measure of angle ABC is 40 degrees, what is the measure of angle ABD?

1. Solve the equation: (x - 8) = 21

How much will you pay the cashier for a candy bar that originally costs 79 cents and is now marked 15% off? Sales tax is 5.5%

Billy was counting the number of wheels and bike seats at the playground. He saw tricycles and bicycles. He counted 79 wheels and 28 seats. How many bicycles did Billy see?

A metal cube of edge 12 cm is melted and formed into three smaller cubes. If the edges of two smaller cubes are 6 cm and 8 cm, find the edge of the third smaller cube?

If today is friday what day of the week will it be 101 days from today

Solve the inequality-2 (z+5) + 20>6