Alvin’s first step in solving the given system of equations is to multiply the first equation by 2 and the second equation by –3. which linear combination of alvin’s system of equations reveals the number of solutions to the system? 9x + 4y = 36 6x + 2.5y = 24 infinite solutions: 0x – 0y = 0 no solutions: 0x + 15.5y = 144 one solution: 0x + 0.5y = 0 two solutions: 0x – 0.5y = 60

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation:

a) 7x=7

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

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step-by-step explanation: