Simplifying the expression 8x +7 - 2x + y, by combining like terms is 6x + y + 7
<h3>How to simplify an expression?</h3>
The expression have to be simplified by combining the like terms.
Like terms are terms whose variables (and their exponents such as the 2 in y²) are the same.
Therefore,
8x +7 - 2x + y
The like terms are 8x and 2x . Therefore, lets combine it.
8x - 2x + y + 7
Therefore, the simplified expression is 6x + y + 7
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You would multiply the length times the height to get the area of the rectangle.
Answer:
The number of faces is 29
Step-by-step explanation:
we know that
The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two
![V- E + F = 2](https://tex.z-dn.net/?f=V-%20E%20%2B%20F%20%3D%202)
In this problem we have
![V=16](https://tex.z-dn.net/?f=V%3D16)
![E=43](https://tex.z-dn.net/?f=E%3D43)
Substitute in the formula and solve for F
![16- 43 + F = 2](https://tex.z-dn.net/?f=16-%2043%20%2B%20F%20%3D%202)
![-27 + F = 2](https://tex.z-dn.net/?f=-27%20%2B%20F%20%3D%202)
![F = 2+27](https://tex.z-dn.net/?f=%20F%20%3D%202%2B27)
![F = 29](https://tex.z-dn.net/?f=%20F%20%3D%2029)
The amount that they put into savings is 10%