13a - 6 + a = 5a + 3 + 3a 13a + a - 5a - 3a = 3 + 6 6a = 9 6a/6 = 9/6 a = 3/2
a+7/3 = 6 Multiply all terms by 3:- 3a+7 =18 3a = 18-7 3a = 11 a = 3 and 2/3
If a + b = 6, what is the value of 3a + 3b?
Subtract 6 from each side: 3a = 9Divide each side by 3: a = 3Job done.
Subtract 6 from each side: 3a = -14 Divide each side by 3: a = -14/3 ie = Minus four and two thirds
6
13a - 6 + a = 5a + 3 + 3a 13a + a - 5a - 3a = 3 + 6 6a = 9 6a/6 = 9/6 a = 3/2
a+7/3 = 6 Multiply all terms by 3:- 3a+7 =18 3a = 18-7 3a = 11 a = 3 and 2/3
If a + b = 6, what is the value of 3a + 3b?
Subtract 6 from each side: 3a = 9Divide each side by 3: a = 3Job done.
Subtract 6 from each side: 3a = -14 Divide each side by 3: a = -14/3 ie = Minus four and two thirds
3a + 2b = (3*6) + (2*5) = 18 + 10 = 283a+2b= (3x6)+(2x5)= 18+10=28
3a = 1a = 1/3 (a third)
3a=1divide both sides by 3a=1/3
-3a-12 = 12+12 +12-3a = +12~ ~-3 -3a = -8
6 + 12 - 5 = 13
4a-2=7a-6 4=3a a=4/3