Ah, what a happy little math problem we have here! When you have 2a times 5a, you simply multiply the numbers together and then multiply the variables together. So, 2a times 5a is 10a squared. Just like painting a beautiful landscape, it's all about combining the elements together in a peaceful and harmonious way.
2a-8+4=45-5a 2a-4=45-5a 2a-4+4=45+4-5a 2a+5a=49-5a+5a 7a=49 / by 7 = A=7
Add them together: 2a+5a = 7a
assuming 5a-a-2a-18=0 2a-18=0 2a=18 and thus a=9
2a + 5a + 3a = 10a
2a + 11a - 5a = 8a
2a - 5a = -3a
5a- 2a = 3
2a-8+4=45-5a 2a-4=45-5a 2a-4+4=45+4-5a 2a+5a=49-5a+5a 7a=49 / by 7 = A=7
2a + 3a = 5a
Add them together: 2a+5a = 7a
2a + 10 + 5a - 2 = (2a + 5a) + (10 - 2) = 7a + 8
5a + 3 + (2a - 2) + a= 5a + 3 + 2a - 2 + a= 8a + 1
assuming 5a-a-2a-18=0 2a-18=0 2a=18 and thus a=9
9a +8 -2a -3 -5a = 2a +5
2a + 5a + 3a = 10a
2a+5a+9a = 16a
7a + 10 = 2a 7a = 2a -10 5a = -10 a = -2