For which values of x is the expression undefined? {5x+30}/{x+7}

When x =-7

Step-by-step explanation:

When the denominator equals 0 (can't divide by 0).

x+7=0 ==> x = -7

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fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: