A = 4.2 - ( 5.6 + 4.3 ) + ( 7 + 5.7
Solve for A
A=7
Assign A
A≔7
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A=4.2-9.9+7+5.7
Add 5.6 and 4.3 to get 9.9.
A=-5.7+7+5.7
Subtract 9.9 from 4.2 to get -5.7.
A=1.3+5.7
Add -5.7 and 7 to get 1.3.
A=7
Add 1.3 and 5.7 to get 7.
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