Cori W. answered  05/24/19
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It would be 8x+7. Eight times an unknown value is 8x. So the sum of this and seven comes to 8x+7.
Gayla H.
asked  05/19/19The sum of eight times an unknown value and seven
Cori W. answered  05/24/19
Fun and Patient Math Tutor versed in Common Core
It would be 8x+7. Eight times an unknown value is 8x. So the sum of this and seven comes to 8x+7.
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