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Q: How do you solve -2a plus 5 plus 3a equals 15-21?

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a = 4

-2a + 5 = 1 -2a = -5 + 1 -2a = -4 a = -4/-2 a = 2

If: 2a+13 = 5a+1 Then: a = 4

a + a + a - 2a = 3a - 2a = a

a+a=1 2a=1 a=1/2

Subtract 2a from each side: P - 2a = b ie b = P - 2a

Solve the following equation for A : 2A/3 = 8 + 4A

the answer

2a+5a+9a = 16a

It is the expression 3 + 2a.

a= (+a) or a= (-) b= 2a b= 2a c= (-a) c= (+a)

2a + 2b = 160 But b = a + 40 so 2a + 2(a + 40) = 160 ie 2a + 2a + 80 = 160 or 4a = 80 ie a = 20 Then b = a + 40 gives b = 20 + 40 = 60 Solution: a = 20, b = 60

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