That depends on the equation and the question which have not been given.
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an equation could be 20+a=50 divided by b=25. hope this helps!
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If ' A ' and ' B ' are equal . . . A =BIf ' A ' is greater . . . A > BIf ' A ' is smaller . . . A
Supplement means the two angles add to 180°. So that's one equation, and the other equation is that one angle is 20° than the other.Let A & B be the angles.A + B = 180A - B = 20Add the two equations: 2A = 200, so A = 100, and then substitute in to get B = 80. So the angle 100° is 20° greater than its supplement.
Let's say Bill = b and Tom= t We can make an equation like this from the question. 2b = 10 + t t= b +15 Since t = b+ 15 you can substitute that into the first equation making it 2b= 10 + (b + 15) 2b= 25+ b b= 25 So now we know bill is 25 inches tall now subsitute that into the sencond equation t=(25) + 15 = 40 Now we know that Tom is 40 inches tall Bill= 25 inches Tom= 40 inches