(2x+1)+(3x-5)=5x-4 you just have to try some of them out and see which ones work
899
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<h3> 517</h3><h3>Hope this helps</h3>
Answer:
I wouldnt know.
Step-by-step explanation:
i think you forgot to attach the image, I’ll come back when you do. Just make sure to do that next time
4x+7=-3
4x=-3-7
4x=-10
X=-10/4
X=-2.5
K = Kevin's age
D = Daniel's age
K = 3D
K - 4 = 5(D - 4)
Plug in 3D for the K values in the second equation.
3D - 4 = 5(D - 4) Use the Distributive Property
3D - 4 = 5D - 20 Add 4 to both sides
3D = 5D - 16 Subtract 5D from both sides
-2D = -16 Divide both sides by -2
D = 8
Now, plug that D value into the original equation.
K = 3D Plug in the D value
K = 3(8) Multiply
K = 24
Finally, you can double check your math.
4 years ago, Daniel would've been 4 and Kevin would be 20, so Kevin would've been 5 times as old as Daniel. And 8 x 3 = 24.
So, Kevin is 24.
