Solve equation by the addition method

X+3y=15,-8x+3y=-12

If a one step equation involves addition, which operation do you use to solve it?

The measure of an angle is 122.5 what is the measure of its supplementary angles

Kerry is planning to plant a rectangular garden that is 16 feet longer than it wide. Kerry wants to find its width if its area is 225 square feet. Which equation models this problem? A:w + 16w = 225 B:w2 - 16w = 225 C:w2 + 16w = 225 D:16w2 = 225

Which graph represents the equation y = 2x

If you were to sort 0.8, 1/4,.08, 8/10, what would be the order they would be in (smallest to biggest) ?

If the mean of the following distribution is 91 and sum of frequencies is 150 find x and y

Find the value of the spring constant for the spring in trial i. use 0.367 s for the value of the period. the mass of the suspended block is 0.400 kg. enter your answer in n/m with three significant figures.

5 + 3x = - 1 + 6 (6x + 1)

If you see a triangle that has a small box in one angle, what type of triangle is it?

There are t teams in a soccer league. each team consists of 11 players. write an equation to find how many players p are in the league