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3 years ago

1. Calculati! ( Va rog ajutati-ma! )

1 answer:

8 0

1. 7+ (-9) = 7-9=-2
2.(-8) + (+5)= -8+5= -(8-5)=-3
3.(+9) - (-3) = 9+3=12
4.(+12) - (-1) = 12+1=13
5. (-7) - (-5) = -7+5==(7-5)=-2
(-14) - (+2) = -14-2=-(14+2)=-16

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What is the simplified form of the expression 3 + 8x − 2y − x + 1 + 4y?

jok3333 [9.3K]

Answer:

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General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
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Multiplication
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Left to Right

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Step-by-step explanation:

Step 1: Define

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3 + 8x - 2y - x + 1 + 4y

Step 2: Simplify

Combine like terms (x): 7x + 3 - 2y + 1 + 4y
Combine like terms (y): 7x + 2y + 3 + 1
Combine like terms: 7x + 2y + 4

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3 years ago

Estimate the products of 79 × 37 and 62 × 49 . Which choice shows the sum of the estimates?

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

Multiply & Divide left to right

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Once again Multiply & Divide

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