inksansandfrisk inksansandfrisk

29-06-2021
Mathematics

contestada

Which is a simplified form of the expression 3a + 7 – a – 7?
A. 2a
B. 4a
C. 2a + 14
D. 4a - 14

Respuesta :

livelaughlovekiara livelaughlovekiara

29-06-2021

Answer:

A. 2a

Step-by-step explanation:

imagine an imaginary 1 in front of the a

3a + 7 – 1a – 7

subtract numbers without variables

3a + 7 – a – 7

3a-1a

subtract 1a from 3a

2a

Answer Link

Аноним Аноним

29-06-2021

Answer:

A. 2a

Step-by-step explanation:

3a + 7 - a + 7

= 3a - a + 7 - 7

= 2a + 0

= 2a

Answer Link

Otras preguntas

What are the roots of the quadratic X² 5x =- 6?

Is Selective Service enforced?

based on the information provided in the passage, which of the following best describes the effect of harmful algal blooms on otter populations?

long-run total cost function by plotting the minimum total costs associated with producing 9 and 18 pizzas, based on your answers to the previous questions. 90

Comprehensive data loss prevention (dlp) focuses on the use of content-level scanning and deep content inspection (dci) to identify sensitive data and protect i

the idea that all religions are one, despite their apparent differences, has made the world more dangerous. true or false

What is the slope of the line segment − 3 3?

What is the end result of the Krebs cycle?

Learning through Art: Human Pedigree Analysis Can you identify the genotypes in this human pedigree for deafness? The human pedigree shown here is for an inheri

What is the genotypic ratio when two heterozygous pea plants are crossed?