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3 years ago

Which expression is equivalent to 3 ( x + 10)

Mathematics

1 answer:

devlian [24]3 years ago

8 0

Answer:

3x + 30

Step-by-step explanation:

$3(x+10)\\\\\text{Distribute '3' into 'x + 10'}\\\\\\3(x+10)\rightarrow3x+30\\\\\left \{ {{3*x=3x} \atop {3*10=30}} \right.$

3x + 30 would be an equivalent expression.

Hope this helps.

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Step-by-step explanation:

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3 years ago

Evaluate a^4 - 6b + 3b ÷ ac for a=-2, b=6, c=3

UNO [17]

Answer:

-47

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

Identify

a⁴ - 6b + 3b ÷ ac

a = -2

b = 6

c = 3

Step 2: Evaluate

Substitute in variables: (-2)⁴ - 6(6) + 3(6) ÷ (-2)(3)
Exponents: 16 - 6(6) + 3(6) ÷ (-2)(3)
Multiply: 16 - 36 + 18 ÷ (-2)(3)
Divide: 16 - 36 - 9(3)
Multiply: 16 - 36 - 27
Subtract: -47

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3 years ago