algebra
posted by dj .
5x=7+4y
20x16y=28
how many solutions are there for the system of equations?
Infinitely many solutions
No solution.
two solutions or three solutions?

5x=7+4y, so
5x4y=7. Multiply both sides by 4, and you get:
20x16y=28. But that's the other equation you were given  so you've actually only got one equation there, not two. And you can feed any value of x into that equation and get a corresponding value of y out.
Respond to this Question
Similar Questions

7th grade math Ms. Sue please
1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x (1 point) one solution no … 
VERY URGENT MATH~!!!!!!!!
1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many solutions 3. 10x – 2 – 6x = 3x – 2 + x (1 point) one solution no … 
math
Help pllsss ASAP!!! have certain answers!! i try but i do not understand! help asap! give answers and walkthrough problems for me! 1. 2(x  3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y  3) = 2y  9 … 
Algebra
How many solutions does this system of equations have? 
Algebra
How many real number solutions does the equation have? 
math
Decide whether the each equation has one solution, no solutions,or infinitely many solutions. 1. 2(x3)= 2X A.One solution B.No solutions C.Infinitely many solutions 2. 3(y3)= 2y9+y A.One solution B.No solutions C.Infinitely many … 
Math
1)How many real number solutions does the equation have? 
Math
How many real number solutions does the equation have? 
Algebra
How many solutions does this system have? 
Math
How many realnumber solutions does the equation have?