Question

If
a+a+a=9
b+b+a=11
b+a-c=13
Than
c*ab+a=?

Answer 1

Answer:

3+3+3= 9

4+4+3=11

4+3-(-6) =13

than

-6*3*4+3= -69

Answer 2

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LET A=X

X+X+X=9

3X=9

$x = \frac{9}{3}$

X=3

A=3

3+3+3=9

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LET B=Y

Y+Y+A=11

2Y+3=11

2Y=11-3

2Y=8

$y = \frac{8}{3}$

y=4

b=4

4+4+3=11

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LET C=Z

B+A-C=13

4+3-Z=13

7-(-Z)=13

-z=13-7

-z=6

z=-6

VALUE OF C=-6

$- z = \frac{13}{7}$

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THEN

C×AB+A=?

-6×3×4+3=?

-69

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