Answer:
3x+7
Step-by-step explanation:
Three times a number, let x be the number and 7 so plus 7
(let x represent the blank)
3/8 + 2/3 = x + 3/8
25/24 = x + 3/8
subtract 3/8 from both sides of the equation
2/3 = x
It's the last one. 0.2 could be changed to 2. That would give you what 40% of 70 is.
According to my brain, The 2nd one
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Answer:
x = 4
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Explanation:
We're solving the equation: -8=-(x+4)
Solve:
-8=-(x+4)
Distribute the negative to the variables in the parenthesis.
-8 = -x - 4
Add 4 to both sides
-4 = -x
Divide by -1
4 = x (same as x = 4)
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