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Q: Solve the equation 24 - 3a equals 3 4.5?

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3a x 2a =24

An equation.

It is an equation because: a = 6

a-16 = a/4+2 Multiply all terms by 4: 4a-64 = a+8 4a-a = 8+64 3a = 72 a = 24

Divide both sides of the equation by 3, resulting in a on the left side and 1022/3 on the right. (Simplify as you wish.)

-21 = 9a - 15 - 3a -6 = 6a -1 = a

36 -20 = 16

yes, one in which a = 6

3a + 11 = 7a - 13 subtract 3a from each side 3a - 3a + 11 = 7a - 3a - 13 11 = 4a - 13 add 13 to each side 11 + 13 = 4a - 13 + 13 24 = 4a divide each sides integer by 4 24/4 = (4/4)a 6 = a -------------check in original equation 3(6) + 11 = 7(6) - 13 18 + 11 = 42 - 13 29 = 29 ----------------checks out

depends what 'a' =

p=b+3a+c p-3a-c=b+3a-3a+c-c p-3a-c=b b=p-3a-c

It is, in fact, an identity - which is an equation which is true for all values of the variable.

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