4x + 5y = 7 3x -2y =-12
Multiply each equation by a number that produces opposite coefficients for x or y.

John makes $10.50 pers hour what expression represens how much he will make if he works h hours

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).

What is negative 3/9 times negative 2/8 ?