12a.
(4a/5) x (3/a) = (12a/5a) = 12/5 = 2.4
3(a + b) + a = 3a + 3b + a = 4a + 3b
If you mean: 4a-3 = 2a+7 then the value of a works out as 5
4a+3 when a=34(3)+312+3=15So you are substituting(replacing) 'a' with the known value of '3'. You then multiply the '4' with the '3' because of the placing of 'a'.
a = -2-4a/3-2 = 8-4a = 8(3-2) times both sides by (3-2)-4a = 24-16-4a = 8-a = 2 divide both sides by 4a = -2 times both sides by -1
2a*3 = 8+4a 6a = 8+4a 6a-4a = 8 2a = 8 a = 4
12a.
(4a)2 or 16a2
(4a/5) x (3/a) = (12a/5a) = 12/5 = 2.4
65 times 4a is equal to 260a.
5a or 4a squared
4a+3-a =12 4a-a = 12-3 3a = 9 a = 3
5
4a
10a − 3 − 4a
4a x 3