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3 years ago

What is 12-11a=45 What is a? 100 points

Mathematics

2 answers:

Evgen [1.6K]3 years ago

4 0

Answer: a = -3

Step-by-step explanation:

Simplifying

12 + -11a = 45

Solving

12 + -11a = 45

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-12' to each side of the equation.

12 + -12 + -11a = 45 + -12

Combine like terms: 12 + -12 = 0

0 + -11a = 45 + -12

-11a = 45 + -12

Combine like terms: 45 + -12 = 33

-11a = 33

Divide each side by '-11'.

a = -3

Simplifying

a = -3

Lelu [443]3 years ago

3 0

Answer:

a=-3

Step-by-step explanation:

-11a=45-12

-11a=33

a= -33/11

a=-3

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