imaniee19
imaniee19
22-01-2020
Mathematics
contestada
9a-2b = -8
-7a + 3b = 12
Respuesta :
hirafathima358
hirafathima358
22-01-2020
9a-2b=-8.....1
-7a+3b=12.....2
So,
1 equation into 3 and 2 equation into 2.
Then,
18a-6b=-24
-14a+6b=24.
4a=0 a=0 .
Substitute a value in 2 equation.
b=4.
Hope it helped
Answer Link
VER TODAS LAS RESPUESTAS ( 87+ )
Otras preguntas
An available channel for FM transmission is 30 kHz wide. The maximum allowable modulating signal frequency is 3.5 kHz. What deviation ratio should be used?
A style of architecture, painting and other types of art that became popular during the Roaring Twenties was called A. Art Deco. B. Realism. C. Pop Art. D. Cont
при взаимодействии раствора серной кислоты с 56 г железа образуется водород объемом
बिल्लू के पास 1 रु., 2 रु. एवं 5रु. के कुल 160 सिक्के हैं जिनका कुल मूल्य 300 रु है। यदि 2 रु. के सिक्कों की संख्या 5 रु. के सिक्कों की संख्या की तिगुनी हो त उस
Calculate the rate of interest for the sun of rupees 80,000 that gives an interest of rupees 2,400 in 5 years
Trong phân tích ELISA trực tiếp, quá trình blocking nhằm mục đích gì sau đây? A.Hạn chế các kháng thể gắn lên giá thể rắn B.Hạn chế các kháng nguyên gắn lên giá
what makes transnational rivers different from inland confined rivers
The medieval village lived and worked in a state of near _______? a) Autonomy b) Serfdom c) Anarchy d) Monarchy
The mass of borax (Na₂B,O,) that is required to prepare a 500ml of 0.1M solution is....... (Exam 2 L2 Ch3) [Na₂B4O, = 201.2gm/mol.] a) 100.6g b) 1.006g c) 10.06
10. If A ABC A RQP and 2 A = 80°, B = 60° then value of 2 P=? ~ a) 60° B)50° c) 40° d)30°
