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 ( 12+ )
Otras preguntas
Kristin jogs around a park that has a perimeter of 12 mile. kristin jogged around the park 4 times in 50 minutes. what is the unit rate of kristin's speed?
Solve the equation by completing the square: 3x^2 – 9x = -6
How many months would it take for the debt to be paid off?
How many ways are there to distribute six different toys to three different children such that each child gets at least one toy?
describe a time when you worked hard for something wanted?
Math problem : suppose you cut a sheet of papper into fourths and throw away three of the fourths. you cut the reminding fourths into fourths you repeat the pro
which condition is characterized by a lack of back-and-forth imitation of gestures and facial expressions during infancy and deficits in empathy and social ski
"the human sense of smell permits us to detect _____ separate smells."
Use instantaneous speed to find instantaneous velocity
How does the method for solving equations with fractional or decimal coefficients and constants compare with the method for solving equations with integer coeff
