lexicook0915
lexicook0915
25-11-2016
Mathematics
contestada
Solve for x?
2x + y = 7
x - y = 5
Respuesta :
symantha777
symantha777
25-11-2016
x=4 because the y cancel out and all your left with is 3x=12 the you divide by 3 and get 4
Answer Link
Аноним
Аноним
25-11-2016
given 2x+y=7...1
x-y=5...2
put x=5+y in 1
2(5+y)+y=7
10+2y+y=7
3y=-3
y=-1
x=5+y
=5-1
=4
Answer Link
VER TODAS LAS RESPUESTAS ( 54+ )
Otras preguntas
In the circuit given below, V = 150 V. Find the node voltages v1 , v2, and v3. I know that we have a supernode however, I don't understand how to calculate v1 w
lf the volume of a sphere= 4.5π cm³ then the radius length is .....?
Clayey soil is useful for growing plants because------ a) Water holding capacity in it is low b) The percolation rate of water in it is highc) It is rich in Hum
Can someone help:(( graph y=2x
The cost of a cycle is ICRS $-3500. If the exchange rate of Indian currency is IC Re1= NC Rs 1.60, find the cost of cycle in Nepali Currency
true or false - every right pyramid has lateral faces that are isosceles triangles
63% to fraction [tex] \frac{63}{?100} [/tex]
The value of the x-intercept for the graph 2x -5y = 30 is
The length of a rectangular garden is 7 feet longer than its width. The garden's perimeter is 178 feet. Find the length of the garden.
Solve the equation 3x/3x-1 + 2/x = 1
