20-01-2016
Mathematics

contestada

18a+-2a+-10a + -10b+12b+6b

Respuesta :

taskmasters taskmasters

20-01-2016

just add/subtract the numbers with the same letters

[18-2-10]a + [-10+12+6] b

6a + 8b

Answer Link

ioana123 ioana123

20-01-2016

we will separate the numbers

18a+-2a+-10a

-10b+12b+6b

RULES:
+ with + = +
- with - = +
+ with - = -

we will have 18a-2a-10a (we applied the last rule)=
6a

-10b+12b+6b= it's not wrong if we write
12b-10b+6b=8b

Putting all togheter, we will have
6a+8b

Answer Link

Otras preguntas

Identify the function in which y varies directly with x. A y=0.3x B y=6x-2 C y=0x D y=5x+1

approximately what percent of the world's population owns half of all Global personal wealth

HELP! How did Marco Polo change the relationship between Europe and China?

Early civilizations in Egypt, India, and China all share which common trait?

Frog: what material (food/air) frog trachea transport?

Find the midpoint of the segment with endpoints (8, –8) and (5, 3).

At which point does the author develop the conflict between the people of phippsburg and those of magala island in Lizzie bright an the buck minister boy? Befo

Explain what causes acid rain to form and its negative effects on living and nonliving things.

Coal _____. A.is a renewable energy source B.is made from inorganic material C.takes millions of years to form D.releases fewer toxins than gas

Which results when HIV weakens the immune system? disabling infections asymptomatic infections symptomatic infections opportunistic infections