Q: What is the value of 4a plus 8 when a equals 4?

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a= -4

the answer is 52 because what plus four gives you 56 it is 52. 52+4=56

4a+3a-4 = 10 4a+3a = 10+4 7a = 14 a = 2

4a + 2 = 4(6) + 2 = 24 + 2 = 26

9=4a+13 9-13=4a -4=4a -4/4=a -1=a a=-1

a2 - 4a + 4

4a + 2 = Answer let a = 2 then Answer equals 4(2) + 2 = 8 + 2 = 10.

so 5a = -20 making a = -4

4a+5=25 4a=25-5 4a=20 a=20/4 a=5

√(4a + 4) = √4(a + 1) = 2√(a + 1).

2a*3 = 8+4a 6a = 8+4a 6a-4a = 8 2a = 8 a = 4

If 4a+24=72 then you start out by subtracting 24 from both sides because what you do to one side of the equation you must do to the other. That means that 4a+24-24=72-24. So 4a=48. Now you divide both sides by 4 and you get a=12.

It is an equation in the single unknown variable, a. a = -4

4a + 6 - 4a = -10 Combining like terms: 6 = -10 or 4 = 0 which is FALSE. So the solution set is empty.

5. Just do 9 minus 4. 5 plus 4 equals 9

a+a+a+a = 4a Because there're 4 a's so that equals = 4a

7a2 + 53a + 28 = 7a2 + 49a + 4a + 28 = 7a(a + 7) +4(a + 7) = (a + 7)(7a + 4)

They appear to be the equations of two parallel lines in the a-b plane.

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'.

7

4(a + 6) = 4a + 24

x = 4

(48a3+32a2+16a)/4a = 12a2+8a+4

1/4

3a + 4 = 4a - 3 4 = a -3 (subtract 3a from each side) 7 = a (add 3 to both sides) a = 7

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