yearyalyssa yearyalyssa

06-09-2018
Mathematics

contestada

Explain how to verify that 3(2x + 5) = 9 + 3x and x = –2 are equivalent equations.

Respuesta :

r0swell r0swell

06-09-2018

3 times (2x + 5) is 6x + 15.

6x + 15 = 9 + 3x.

Group by like terms. 6 = -3x

Divide to get x by itself. 6/-3 = -2

Thus -2 = x

Answer Link

Otras preguntas

The Volume, Vcm3, of a tin of radius r cm is given by the formula V=π (40r-r2-r3). Find the positive value or r for which dV/dr=0, and find the value of V which

Write an acrostic poem with the word adaptations

Explain how 3 of these factors affect climate: Latitude Altitude Distance from seas or oceans Prevailing winds Ocean currents Thank you :p

Which words in the sentence make up the adverb phrase? Which word does the adverb phrase modify? We sometimes see bats after sunset. A. see bats; modifies We B.

What is the process called for discarding your old computer

Which country wanted open trade with China? Britain, United States, France, or Russia

What are the three particles of an atom

how to solve 6x+3=5x+10

Two number cubes are rolled. What is the probability that the sum of the numbers rolled is either 4 or 8? A.1/9. B.2/9. C.5/18. D.5/432

TRANSLATE THE FOLLOWING VERBAL STATEMENTS INTO ALGEBRAIC EXPRESSIONS: Three less than double a number half the product of sixteen and a number triple the square