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alexdok [17]
3 years ago
9

How are numerical expressions and algebraic expressions different

Mathematics
1 answer:
lozanna [386]3 years ago
7 0
Numerical expressions use numbers and algebraic expressions use variables.
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Solve for x. 7(x - 3) 3(4 - x) = -8 x = 1/4 x = 25/10 x = -16/19 x = -41/10
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3 years ago
Carlos is 33 years younger than Kristen. 2 years ago, Kristen's age was 2 times Carlos's age. How old is Carlos now?
ale4655 [162]

Answer:

Carlos is 35 years old now

Step-by-step explanation:

Assume that Carlos is x years old now

∵ Carlos is x years old now

∵ Carlos is 33 years younger than Kristen

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∴ Kirsten is x + 33 years old now

2 years ago

∵ Carlos's age = x - 2

∵ Kristen's age = x + 33 - 2 = x + 31

∵ Kristen's age was 2 times Carlos's age

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- Simplify the right hand side

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- Subtract x from both sides

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- Add 4 to both sides

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3 years ago
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