How many solutions does -3x+9-2x=-12-5x have

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Write the equation in logarithmic form e^x=403.429