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Basic Math Examples
17=9-a17=9−a
Step 1
Rewrite the equation as 9-a=179−a=17.
9-a=179−a=17
Step 2
Step 2.1
Subtract 99 from both sides of the equation.
-a=17-9−a=17−9
Step 2.2
Subtract 99 from 1717.
-a=8−a=8
-a=8−a=8
Step 3
Step 3.1
Divide each term in -a=8−a=8 by -1−1.
-a-1=8-1−a−1=8−1
Step 3.2
Simplify the left side.
Step 3.2.1
Dividing two negative values results in a positive value.
a1=8-1a1=8−1
Step 3.2.2
Divide aa by 11.
a=8-1a=8−1
a=8-1a=8−1
Step 3.3
Simplify the right side.
Step 3.3.1
Divide 88 by -1−1.
a=-8a=−8
a=-8a=−8
a=-8a=−8