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wel
3 years ago
15

If a equals 4b - 15 what is b

Mathematics
1 answer:
nlexa [21]3 years ago
7 0

Answer:

b = a + 3.75

Step-by-step explanation:

a = 4b - 15

You are solving for b. Isolate the b. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, add 15 to both sides

a (+15) = 4b - 15 (+15)

a + 15 = 4b

Next, divide 4 from both sides. Remember to divide from all terms.

(4a + 15)/4 = (4b)/4

b = (4a)/4 + (15)/4

b = a + 15/4

b = a + 3.75 is your answer

~

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Isolate the term of t from one side of the equation.

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First, subtract by 70 from both sides.

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<u>Rewrite the problem down.</u>

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I hope this helps! Let me know if you have any questions.

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