Q: What is 4a plus 2 when a equals 2 answercom?

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10

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

a= -4

9a + 4a = 26 13a = 26 a = 26/13 a = 2

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

5

(1) 4a-5b=7 (2) 4a+5b=17 (1)-(2) gives 4a-5b-(4a+5b)=7-17 then -10b=-10 so b=1 from (2) one gets 4a=17-5b=17-5x1=12 so a=3 (3,1) is the solution

so 5a = -20 making a = -4

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

2a = 8 + 4aSubtract 8 from each side:2a - 8 = 4aSubtract 2a from each side:-8 = 2aDivide each side by 2:-4 = a

a-16 = a/4+2 Multiply all terms by 4: 4a-64 = a+8 4a-a = 8+64 3a = 72 a = 24

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

√(4a + 4) = √4(a + 1) = 2√(a + 1).

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

6-3a**2+7+4a-5a+18 3a**2-1a+31

4a-2=7a-6 4=3a a=4/3

The equation cannot be solved as there are two unknowns. However it can be simplified and the two unknowns (a and b) expressed in terms of the second unknown. 1) Expressing a in terms of b 4a + 2 = 3b - 5 4a = 3b -7 if desired this could be stated as a = (3b - 7)/4 2) Expressing b in terms of a 3b - 5 = 4a + 2 3b = 4a + 7 if desired this could be stated as b = (4a + 7)/3

(a + 2)(3a - 2)

It is an expression that can be simplified to: 4a+2

degree 1

Its evaluation is: (4*5)+(7*3) = 41

4a + 7

You use Plus as a symbol in Maths. Example, 2 Plus 2 equals 4. Or in symbols it would be 2+2=4. __________________________ Plus = + Equals = = (Equals equals =)

a3 - 2a2 + 4a - 8 = a2(a - 2) + 4(a - 2) = (a - 2)(a2 + 4)

4a - 5 = 7a - 7 -5 = 3a - 7 2 = 3a a = 3/2