For a solution to exist the x and y values must be equal at that point.
I'll solve both for y first (and there are other ways to do this of course)
2x+4y=1, 4y=1-2x, y=(1-2x)/4
3x-5y=7, -5y=7-3x, y=(3x-7)/5
Since y=y at the solution point we can say:
(1-2x)/4=(3x-7)/5 cross multiplying...
5-10x=12x-28
-22x=-33
x=3/2 or if you prefer 1.5, now we can solve for y using either origianl equation...
2(1.5)+4y=1
3+4y=1
4y=-2
y=-0.5
So the solution is the point (1.5, -0.5)
Answer:
6
Step-by-step explanation:
20÷3=6 (give or take)
Answer:
x=4
Explanation:
7/2x-19=-13+2x
Add 19 to both sides
7/2x-19+19=-13+2x+19
7/2x=6+2x
Subtract both sides by 2x
7/2x-2x=6+2x-2x
7/2x-2x=6
Change 2x into a fraction
7/2x-4/2x=6
3/2x=6
Divide both sides by 3/2
(3/2x)/(3/2)=6/(3/2)
x=6/(3/2)
Dividing my a fraction is the same as multiplying its reciprocal
x=6*2/3
x=12/3
x=4
I hope this helps!
Answer:
both 7÷2 and 7/2 are symbols of division, as you can see the ÷ symbol has a dividing line between the denominator dot and the numerator dot. 7/2 is just 7 divided In two parts and so it 7÷2
Step-by-step explanation:
hope this helps!!
It is the grapes + apples= 5 6/8+2 1/8 = 46/8+ 17/8= 63/8 0r 7 7/8 pount of fruit.
