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 ( 78+ )
Otras preguntas
Humans always have a negative impact on the environment ?TRUE or FALSE ?
Please Answer these following questions...1. What is (-7)^5 in expanded form2. Solve 2s^3 - 4r^2 if r = 1 and s = 5 (explain all steps)3. How would you convince
One math student, John, can solve these 6 math problems in 20 minutes while another student, Juaquine, can solve them at a rate of I problem per 4 minutes. Who
When you sneeze, the air in your lungs accelerates from rest to approximately 150km/h in about 0.50 seconds. What is the acceleration, in units of g?
simplify this expressionn-10+9n-3
Sue needs 2 1/3 cups of flour for a batch of cookies. How many complete batches can she make with 10 cups of flour?
3k-1=7k+2How do I solve this? and other problems like this?
One-third of a number, decreased by six equals eight. What is the number?
What times what will give m the answer 64
Could life as we know it exist on earth if air contained only oxygen? Explain What would happen to the supply of atp in your cells if you ate to few carbohydrat
