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Diano4ka-milaya [45]
3 years ago
15

What is the value of a in the equation 5a-10b=45 when b=3

Mathematics
2 answers:
valentina_108 [34]3 years ago
7 0
Since b = 3 the equation changes

5a - 10(3) = 45
5a - 30 = 45

(Add 30 to both sides)
5a = 75
Divide 5 to both sides
a = 15
spin [16.1K]3 years ago
6 0
If you would like to solve the equation 5 * a - 10 * b = 45, when b = 3, you can calculate this using the following steps:

b = 3
5 * a - 10 * b = 45
5 * a - 10 * 3 = 45
5 * a - 30 = 45
5 * a = 45 + 30
5 * a = 75       /5
a = 75 / 5
a = 15

Result: The value of a is 15.
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