Malachy45
Malachy45
24-01-2019
Mathematics
contestada
7x+3y=-12 2x+5y=38
Please help
Respuesta :
leel33lee
leel33lee
24-01-2019
7x + 3y = -12
2x + 5y = 38
5y = -2x + 38
y = -2x/5 + 38/5
7x + 3•(-2x/5+38/5) = -12
29x/5 = -174/5
29x = -174
x = - 6
x=-6
y = -2x/5+38/5
y = -(2/5)(-6)+38/5 = 10
x=-6
y=10
Answer Link
VER TODAS LAS RESPUESTAS ( 46+ )
Otras preguntas
At 6:00 AM, the outside temperature was –14⁰. By noon. the outside temperature had risen by 8⁰. What was the outside temperature at noon? a. –22⁰ b. –6⁰ c. 6
what is the gcf of 24 40 and 56
describe one way that cells use water
what is the square root of 79
12*10^5 or 1.2*10^6 which one is closer to 1 million? please explain.
describe the two kinds of weathering and the three kinds of erosion that shape the surface of the earth
6x-7=4 what is the answer
Are the fraction 5/6,5/7,5/8,and 5/9 arranged in order from least to greatest or from greatest to least ?
Which expressions are equal to the expression –2.7 – 16.4? Choose all answers that are correct. A. –2.7 – (–16.4) B. –16.4 + (–2.7) C. –16.4 – (–2.7) D. –2.
which is greater 1/5 or 0.25?
