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 ( 26+ )
Otras preguntas
A group of investors has formed SandInn Corporation to purchase a small hotel. The price is $200,000 for the land and $800,000 for the hotel building. If the pu
A rectangular table top has length 1.6 m and width 0.8 m. A force of 650 N is applied to the whole table top. Calculate the pressure in N/m2 to the nearest inte
name 5 extrusive volcanic features
Consider three closed economies. In the first economy, households spend $0.50 of each additional dollar they earn and save the remaining $0.50. In the second ec
Suppose the price elasticity of demand for heating oil is 0.1 in the short run and 0.9 in the long run. If the price of heating oil rises from $1.20 to $1.80 pe
Constructive interference occurs when the compression of one wave meets up with the compression of a second wave. A. True B. False
what is the volume of 20.0 of air.
Can someone help me
The original price of a mountain bike was reduced by $125. If p= the mountain bike's original price in dollars, which algebraic expression represents the reduce
This is the question that I need help with.
