hellokitty1647
19.11.2020 •
Mathematics
The sum of four and seven times a number is -31. What is the number?
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Ответ:
The number is -5
Step-by-step explanation:
Let x be the number
Write it out as an algebraic expression: 7x + 4 = -31Subtract 4 from each side, so it now looks like this: 7x = -35Divide each side by 7 to cancel out the 7 next to x. It should now look like this: x = -5I hope this helps!
Ответ: