the answer is 52 because what plus four gives you 56 it is 52. 52+4=56
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a+a+a+a = 4a Because there're 4 a's so that equals = 4a
To find the value of x in the equation 35x = 56, you would divide 56 by 35. This gives you x = 1.6. Therefore, 35 times 1.6 equals 56.
They appear to be the equations of two parallel lines in the a-b plane.
9=4a+13 9-13=4a -4=4a -4/4=a -1=a a=-1