Command Solve Equation 
- an equation Left side of the equation is equal to a sum that consists of 2 terms. The 1st term of the sum is equal to a product consisting of 2 factors. The 1st factor of the product is nine. The 2nd factor of the product is a sum that consists of 2 terms. The 1st term of the sum is equal to x. The 2nd term of the sum is three. The 2nd term of the sum is a product containing 2 factors. The 1st factor of the product is five. The 2nd factor of the product is a sum that consists of 2 terms. The 1st term of the sum is x. The 2nd term of the sum is three Right side of the equation is a sum that contains 2 terms. The 1st term of the sum is a product containing 2 factors. The 1st factor of the product is equal to seven. The 2nd factor of the product is x. The 2nd term of the sum is equal to negative seven.
- nine times open parenthesis x plus three close parenthesis plus five multiplied by left bracket x plus three right bracket is equal to seven multiplied by x plus negative seven;
VariableResultExact  
- an equation LHS is equal to x RHS is equal to negative seven.
- x is equal to negative seven;
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