Question 1075985

I need help with this question: 4 time the number B is equal to the number A. The sum of 2 times A and two times B is 49. What is A and B?
<pre>4B = A ------- eq (i)
2A + 2B = 49 ----- eq (ii)
2(4B) + 2B = 49 ------ Substituting 4B for A in eq (ii)
8B + 2B = 49
10B = 49
B = {{{highlight_green(matrix(1,3, 49/10, or, 4.9))}}}
A = {{{highlight_green(matrix(1,3, 4(4.9), or, 19.6))}}}
That's it....nothing CONFUSING and/or COMPLEX!!