Solve the system of equations.
y= 3x +5
y= 8x +3
2 answers:
Answer:
y=6.2 and x=0.4 or (0.4,6.2)
Step-by-step explanation:
Since both expressions are equal to y, we can set them equal to each other and solve for x:
3x+5=8x+3
5=5x+3
2=5x
2/5=x
0.4=x
Now to solve y:
y=8(2/5)+3
y=16/5+3
y=3.2+3
y=6.2
Check answers:
6.2=3(0.4)+5
6.2=1.2+5
6.2=6.2
6.2=8(0.4)+3
6.2=3.2+3
6.2=6.2
Answers work, so y=6.2 and x=0.4 or (0.4,6.2) as an ordered pair
Answer: x= 2/5 , y= 31/5
Step-by-step explanation:Let's work to solve this system of equations:
y= 3x +5 : Equation 1
y= 8x +3 : Equation 2
The tricky thing is that there are two variables, x and y. If only we could get rid of one of the variables...
subsitute y= 8x +3 : [8x+3=3x+5]
isolate x for 8x+3=3x+5: x+2/5
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Answer:
16
Step-by-step explanation:
Solve 5 to the power of x minus 3 to the power of x when x=2.
So, you do 5 to the power of 2 minus 3 to the power of 2, which is 25-9=16
Answer:
4x + 7 - ( x + 1)
Remove the bracket
We get
4x + 7 - x - 1
= 3x + 6
That's option B
Hope this helps.
Yay me following equations
Maybe after the dog walked the street
4 units wide
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