3 years ago

1. a -7 when a = 3 a + 7 = 3 + 7 = __

Mathematics

1 answer:

Tanya [424]3 years ago

3 0

Answer:

If a = 3

a -7 = -4

Step-by-step explanation:

Here, we want to find the value of a -7 given that a = 3

To find this value, we are going to make a substitution

We simply substitute 3 for the value of a

we have this as;

3 -7 = -4

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1. a -7 when a = 3 a + 7 = 3 + 7 = __​

1. a -7 when a = 3 a + 7 = 3 + 7 = __