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Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).