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2 years ago

(10+4)(5x-22)=3(4x-6)

Mathematics

1 answer:

ruslelena [56]2 years ago

7 0

Answer:

Solution: x =5

Step-by-step explanation:

Solving Equations

Solve the following equation:

( 10 + 4 ) ( 5x - 22 ) = 3( 4x - 6 )

Operating:

14( 5x - 22 ) = 3( 4x - 6 )

Removing parentheses:

70x - 308 = 12x - 18

Subtracting 12x and adding 308:

70x -12x = 308 - 18

Operating:

58x = 290

Dividing by 58:

x = 290/58

x = 5

Solution: x =5

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4 0

2 years ago

Y = 4x – 18 y = -5x +9

adelina 88 [10]

Answer:

(3, -6)

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
Subtraction Property of Equality

Algebra I

Coordinates (x, y)
Terms/Coefficients
Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = 4x - 18

y = -5x + 9

Step 2: Solve for x

Substitution

Substitute in y [2nd Equation]: 4x - 18 = -5x + 9
[Addition Property of Equality] Add 5x on both sides: 9x - 18 = 9
[Addition Property of Equality] Add 18 on both sides: 9x = 27
[Division Property of Equality] Divide 9 on both sides: x = 3

Step 3: Solve for y

Substitute in x [1st Equation]: y = 4(3) - 18
Multiply: y = 12 - 18
Subtract: y = -6

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2 years ago

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anyanavicka [17]

Answer:

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Step-by-step explanation:

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2 years ago