dannyboy1972
dannyboy1972
01-12-2016
Mathematics
contestada
a+b=2x-2 and a-b=4x-8 find a and b
Respuesta :
charstar
charstar
01-12-2016
a+b=2x-2
a-b=4x-8
a=6x-10
a=4x-8+b
6x-10=4x-8+b
2x-10=b-8
2x+2=b
2x-2=b-4
a+b=b-4
a=-4
-4=6x-10
6=6x
x=1
2-2=b-4
0=b-4
4=b
a=-4
b=4
Hope this helps :)
Answer Link
VER TODAS LAS RESPUESTAS ( 41+ )
Otras preguntas
-3/4 (-4) please provide answer and how to solve it
what is the outlet of a river called
The least common multiple of two numbers is 60, and one of the numbers is 7 less than the other number . What are the numbers ? Justify your answer
write down everything you know about the equation y=mx+b. you should include what this general equation represents,as well as what each of the different letters
55/100 in simplest form?
Explain why contact trace evidence is so important in solving crimes.
Manuel has 15 goldfish. This is 6 more than Quinn has. How many goldfish does a Quinn have?
An adult blinks about 450 times in 30 min. A 12 year old blinks about 150 times in 15 min. How many more times does an adult blink in 60 min. than a 12 year old
How to do 103,727,495 in expanded form
A bus slams on its breaks and goes from 30 km/hr to 15km/hr in 4 seconds. What is its acceleration?
