Best Answer

5a + 2 = 7

subtract 2 from both sides:

5a = 5

divide both sides by 5:

a = 1

Q: How do you solve the equation 5a plus 2 equals 7?

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It is a linear equation in the variable a.

5a - 10 = 4a + 8 is a linear equation in one variable.

6a + 4 = 5a - 2 means that 6a - 5a = -2 - 4 which gives a = -6

4a - 2.1 = 9a + 5.4 4a - 9a = 5.4 +2.1 -5a = 7.5 -a = 1.5 a = -1.5

2x+a=p 2x=p-a x=.5p-.5a

Related questions

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

It is a linear equation in the variable a.

5a - 10 = 4a + 8 is a linear equation in one variable.

6a + 4 = 5a - 2 means that 6a - 5a = -2 - 4 which gives a = -6

4a - 2.1 = 9a + 5.4 4a - 9a = 5.4 +2.1 -5a = 7.5 -a = 1.5 a = -1.5

2x+a=p 2x=p-a x=.5p-.5a

6a + 5a = -11 Combining like terms: 11a = -11 Dividing by 11: a = -1

It is not an equation but an algebraic expression that can be simplified to: 12b-5a

5a-20+2a = 6a-11 5a+2a-6a = 20-11 1a = 9 a = 9

-59

a + b + c = 180 b = 3a c = 5a Substituting the values of b and c into the first equation. a + 3a + 5a = 180 or 9a = 180 so that a = 20 then b = 3a = 3*20 = 60 and c = 5a = 5*20 = 100

2a+5a+9a = 16a