Please help me get the answer

1 25/ 100

Step-by-step explanation:

you change the mixed numbers into improper fractions.

3 1/8 : 25/8

1 7/8 : 15/ 8

then you add the numerators or you can cross out the denominator since they both have the same denominator. After you do that you divide the numerator. If you get a decimal you can just add the numerator and keep the denominator 40/ 8. After you do that you would divide and your answer is 5.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

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step-by-step explanation:

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