If x = 7 and y= -2, evaluate the following expression: 6x-8y

58

Step-by-step explanation:

6(7)-8(-2)=58

(6×7)-(8×-2)

42-(-16)

42+16

58

Step-by-step explanation:because after inserting your # for x and y, you end up with minus a negative number. This becomes a positive and the 2 numbers are added together

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step-by-step explanation:

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step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get