(3 x 3) - 6 = 3
3a-6=3
3a=3+6
3a=9
a=9/3
a=3
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∙ 11y ago13a - 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
3a + 2b = (3*6) + (2*5) = 18 + 10 = 283a+2b= (3x6)+(2x5)= 18+10=28
3a=1divide both sides by 3a=1/3
6 + 12 - 5 = 13
-3a-12 = 12+12 +12-3a = +12~ ~-3 -3a = -8
3a = 21 Therefore, a = 21/3 a = 7
If 3a+5=5a+3, then: 3a+5 - 3a = 5a+3 - 3a 5=2a+3 5 - 3=2a+3 - 3 2=2a a=1
0.5
If: -3a-1 = -15 Then: a = 4 and 2/3
a = 14/3
1/3=a
3a + 9 =3X(a + 3)