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3 years ago

NEED EXPLANATION & PROCESS

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

7 0

Answer:

x = 20, y = 110

Step-by-step explanation:

For x:

$5x + 45 + 3x - 25 = 180\\8x + 20 = 180\\8x = 160\\x = 20$

For y:

$y + 2x - 5 + 3x - 25 = 180\\y + 2(20) - 5 + 3(20) - 25 = 180\\y + 40 - 5 + 60 - 25 = 180\\y + 35 + 35 = 180\\y + 70 = 180\\y = 110$

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Solve -3y + 14 + y = 12

ser-zykov [4K]

Answer:

y = 1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
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Terms/Coefficients

Step-by-step explanation:

Step 1: Define

-3y + 14 + y = 12

Step 2: Solve for y

Combine like terms [Addition]: -2y + 14 = 12
[Subtraction Property of Equality] Subtract 14 on both sides: -2y = -2
[Division Property of Equality] Divide -2 on both sides: y = 1

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Answer:

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