Question

Need help with following questions

Answer 1

Answer:

a) no solution; b) x = 1; c)  no solution; d) no solution

Step-by-step explanation:

Next time, please be more specific regarding what kind of help you want.  In this case, it'd be "Solve for x."

2x+5=2x-4 has the term 2x on both sides; we can eliminate this by subtracting 2x from both sides.  But this leads to 5 = -4, which is never true.  This equation has no solution.

2x+6=15x-7 can be rewritten as 13 = 13x.  Dividing both sides by 13, we get x = 1.  The solution is x = 1.

2x+6=8+2x is similar to 2x+5=2x-4 in that both sides have the "2x" term, and 6≠8.  No solution.

x+2y=5=x+3y=8 has two variables (x and y).  

Subtracting 2y from both sides results in:   x = 5 = x+y = 8.  This is not possible, because it states that 5 = 8.  No solution (or possible mistake in copying down this problem).