2 years ago

If 20a-16=12(3-a), then a=?a)5/8b)13/8c)21/16d)5/2

Mathematics

2 answers:

lorasvet [3.4K]2 years ago

5 0

ANSWER: B. 13/8

STEP BY STEP THING:

20a−16=12(3−a)

20a−16=−12a+36

32a−16=36

32a=52

32a/32 = 52/32

a = 13/8

vovikov84 [41]2 years ago

4 0

Answer:

13/8 or 1.625

Step-by-step explanation:

1)combine like terms 2)isolate the variable(a) to one side of the equation 3) use multiplicative or division properties x=13/8 or 1.625

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If 20a-16=12(3-a), then a=?a)5/8b)13/8c)21/16d)5/2​

If 20a-16=12(3-a), then a=?a)5/8b)13/8c)21/16d)5/2