5x-6y=-25 and 4x-3y+20=0 how many solutions does the system have?

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

What does x = in this equation x+3+2x=x+5

Measure of angles 31 (x+4) (3x+9) me