Pair of Linear ...

Solve: $$4x+\displaystyle \frac{6}{y}= 15$$ and $$6x-\displaystyle \frac{8}{y}= 14$$. Hence, find $$a$$ if $$y= ax-2$$

Solve the following pair of equations:

Pooja and Ritu can do a piece of work in $$\displaystyle 17\frac{1}{7}$$ days. If one day work of Pooja is three fourth of one day work of Ritu then find in how many days each alone will do the same work.

Solve the following equations by substitution method.

Solve the following equations by substitution method.

Solve the following equations by substitution method.

Solve the following simultaneous equations by the method of equating coefficients.$$3x-4y=7;\, \, 5x+2y=3$$ .

Find the values of $$(x+y)$$ and $$(x-y) $$without actually solving for $$x$$ and $$y$$. 

Solve the following equations by substitution method:

Solve the following equations by substitution method.