<em>Answer:</em>
<em>For the first question the answer is : x = -10</em>
<em>And for the second question the answer is : x = 4</em>
<em>Step-by-step explanation:</em>
<em>For the first Equation :</em>
<em> 5(3x+2)-2 = -2(1-7x)</em>
<em> 15x +10-2 = -2 +14x</em>
<em> 15x + 8 = -2 + 14x</em>
<em>15x + 8 - 14x = -2 + 14x - 14x</em>
<em> x + 8 = -2</em>
<em> x+8-8 = -2 -8</em>
<em> x = -10</em>
<em>Answer : x = -10</em>
<em />
<em>For the second Equation :</em>
<em> 3x+2 = 14</em>
<em> 3x+2-2 = 14-2</em>
<em> 3x = 12</em>
<em> 3x/x = 12/3</em>
<em> x = 4</em>
<em>Answer : x = 4</em>
Answer:
Step-by-step explanation:
1 and 5
Answer:
Aand C I think ......................
Answer:
![4\sqrt{5}](https://tex.z-dn.net/?f=4%5Csqrt%7B5%7D)
Step-by-step explanation:
Prime factorize 20 and 45
![\sqrt{20}=\sqrt{2*2*5}=2\sqrt{5}\\\\\\\sqrt{45}= \sqrt{5*3*3}=3\sqrt{5}](https://tex.z-dn.net/?f=%5Csqrt%7B20%7D%3D%5Csqrt%7B2%2A2%2A5%7D%3D2%5Csqrt%7B5%7D%5C%5C%5C%5C%5C%5C%5Csqrt%7B45%7D%3D%20%5Csqrt%7B5%2A3%2A3%7D%3D3%5Csqrt%7B5%7D)
![\sqrt{20}-\sqrt{5}+\sqrt{45}=2\sqrt{5}-\sqrt{5}+3\sqrt{5}](https://tex.z-dn.net/?f=%5Csqrt%7B20%7D-%5Csqrt%7B5%7D%2B%5Csqrt%7B45%7D%3D2%5Csqrt%7B5%7D-%5Csqrt%7B5%7D%2B3%5Csqrt%7B5%7D)
![=(2-1+3)\sqrt{5}\\\\\\= 4\sqrt{5}\\](https://tex.z-dn.net/?f=%3D%282-1%2B3%29%5Csqrt%7B5%7D%5C%5C%5C%5C%5C%5C%3D%204%5Csqrt%7B5%7D%5C%5C)