This type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.
Answer:
615.44m
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Step-by-step explanation:
one zero
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7j + 17 = 87
Subtract 17 from both sides.
7j = 70
Divide both sides by 7.
j = 10
<h3>The value of the unknown number, or j, is equal to 10.</h3>