solve by substituting y=3x+4 7x+2y=21

solve by substituting y=3x+4 7x+2y=21

Solve by graphing: Y=x+2 x=-3

Bob bought some jelly beans weighing 5 grams each and some mints weighing 4 grams each. If he has 100 pieces of jelly beans and mints together, and they weigh 480 grams in total, how many of each...

When a number is increased by 8% of itself, the result is 54. Find the number.

I want to know present age of candy ?explain me so that I can slove same problems based on this method sir

answer are 1,3,9 how sir

5(2z-3)=9(z+2)

6. Which of the following triangles are right triangles? Check all that apply. A triangle with side lengths 5, 12, 13 A triangle with side lengths 6 inches, 8 inches, 10 inches A triangle...

problem in quadratics

I need to upload pictures of the equations?

Just a math problem that I have been stuck on for a while.

I need to understand how to solve for fractions

simplify

algebra word problem

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use the true equation 3x-2=3x-2 to create an equation with no solution.

Gab and Van mow the lawn and finishes the job for 40 mins. If gab is twice as fast as Van, how long will it take Gab to finish mowing the lawn if he does the project by himself? My...

These equations are from the college course Math 209.

can you please help me step by step to work this out

and need to find where they intersect. y = x - 1 and the parabola y^2 = 2x + 6 I know I set them equal to each other. But every time I solve it I get one point...

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