how to solve systems using substitution

Solve the Systems of linear equations by Method of Substitution: 2x - 9y = 0 (i) x - 18y = 27 (ii..

Solve 2x - 9y = 0 (i) x - 18y = 27 (ii) From (i) 2x - 9y = 0 2x = 9y (iii) Substituting this value of x in (ii), we get, 9y - 36y = 54 - 27y = 54 y = -2 Substitute this value of y in (iii): = - ..

Solve the linear system by using the substitution method and find the number of solutions. 3 x + y = -10 6 x - 5 y = -55 => Infinitely many solutions or Exactly one solution or No solution or None of the above..

Choose the equation wherein you would isolate a variable easily so that substitution method can be used to solve the linear system. - 5 x + y = -35 [Equation 1] 5 x + 4 y = 38 [Equation 2] => Equation 1 or Equation 2 or Both Equation 1 and Equation 2 or Neith..

Use the substitution method to solve the linear system. 59 x + 15 y = 180 x - 5 y = 2 => (- 3, 1 5 ) or (3, 1 5 ) or (3, - 1 5 ) or (- 3, - 1 5 )..

When the functional group or any substituent, in aromatic compounds is directly attached to the benzene ring, it is a called nuclear substituted compound. Such compounds are named as the derivatives of benzene under the IUPAC system. However, the common names of many such compo..

Evaluation of definite integral by substitution - We know that one of the most important method of evaluation of indefinite integral is method of substitution. While using method of substitution to evaluate definite integrals, following steps are involved.We ..

Haloalkanes react with alcoholic solution of potassium cyanide (KCN) to give alkane nitriles or alkyl cyanides as the major products along with a small amount of alkyl isocyanides. Alkyl cyanides can further be converted into acid amides, carboxylic acids and primary amines under different con..

All amino groups -NH 2 , -NHR, -NR 2 are most powerful activating groups in aromatic electrophilic substitution reactions are ortho and para directing. Aniline gets instantaneously brominated at all of the three O, p - positions to give a white precipitate. The high reactivity is d..

If a system of linear equations has at least one solution, then the system is called consistent, otherwise it is called inconsistent. Solve the system of linear equations (1) by using method of elimination as studied earlier Multiplying the first e..