3 years ago

5x-8-2x+14=x+8+2x+13. How many solutions does this equation have?

Mathematics

1 answer:

Degger [83]3 years ago

3 0

Answer:

this equation has no solution. Because the variable of both sides is equal so their difference is zero.

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The expression (2 x 7) x 3 represents the number of times Eric went to the beach each week during 3 months. Which property is ap

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Commutative

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An item priced at 25 dollars is on sale for 20 percent off. What is the new price?

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25 X 20% (0.20) = 5

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A ladder 7 m long stands on level ground and makes a 73° angle with the ground as it rests against a wall. How far from the wall

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Last year at a certain high school, there were 50 boys on the honor roll and 100 girls

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there were 145 boys on the honor role and 60 girls equally given a total number of 205. This year, the number of boys decreased by 20% = 0.2*145=29

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Solve. Round to the nearest tenth. 6 2-12 19 2x-2 HELP ASAP!!

Strike441 [17]

Answer:

$\displaystyle x = \frac{216}{7}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{6}{19} = \frac{x - 12}{2x - 2}$

Step 2: Solve for x

Cross-multiply: $\displaystyle 6(2x - 2) = 19(x - 12)$
Distribute: $\displaystyle 12x - 12 = 19x - 228$
Isolate x terms: $\displaystyle -12 = 7x - 228$
Isolate x term: $\displaystyle 216 = 7x$
Isolate x: $\displaystyle \frac{216}{7} = x$
Rewrite: $\displaystyle x = \frac{216}{7}$

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