Churchboy120122
Churchboy120122
28-02-2018
Mathematics
contestada
Substitute
-3x-8y=4
-2x+7y=15
Respuesta :
drewemiller
drewemiller
28-02-2018
-2x=15-7y
x=-7.5+3.5y
-3x-8y=4
-3(7.5+3.5y)-8y=4
-22.5-10.5y-8y=4
-22.5-18.5y=4
-18.5y=4+22.5
-18.5y=26.5
y=-53/35
the fraction might not be in lowest terms.
Answer Link
VER TODAS LAS RESPUESTAS ( 35+ )
Otras preguntas
A pizza shop bought a bushel of fresh vegetables. 4/15 of the bushel was used on Friday, 3/5 on Saturday and 2/15 on Sunday. How much of the bushel is left for
PLEASE HELP ASAPPPP!!! Solve the right triangle given that mA =30°, mC = 90° and a = 15. Then round your result to ONE decimal place
PLEASE HELP WILL GIVE BRAINLIEST PRECALC
FIRST WILL GET BRAINLLEST Each group of students receives a bag that has 8 red cubes, 2 green cubes, and 10 blue cubes. If each group makes 100 pulls and replac
Please help me!!!!!!!
There are grammatical error in the sentences given bellow , Circle the mistakes in each sentence , then rewrite the sentence . If there aren't any mistake, Put
Round the numbers that follow to three significant figures and express the result in standard exponential notation: (a) 143,700; (b) 0.09750; (c) 890,000; (d) 6
John is filling a bathtub that is 12 inches deep. He notices that it takes two minutes to fill the tub with three inches of water. He estimates it will take 10
PLEASE HELP, WILL MARK BRAINLIST----- A building is 250 ft by 120 ft. If you were to draw this building using a scale of 1 in. 5 20 ft, what would the dimension
In circle C, what is mArc F H?
