)is on the line 4x + 5y = -7. find the other half of the coordinate.

 The other half of the co-ordinate is 2.

Step-by-step explanation:  Let, 'b' be the other half of the co-ordinate (?, -3) that lies on the given straight line as follows:

So, we can say that the point (b, -3) lies on the line (i). That is, the point (b, -3) will satisfy equation (i).

Substituting (x, y) = (b, -3) in equation (i), we get

Therefore, the value of 'b' is 2.

Thus, the other half of the co-ordinate is 2. And the complete co-ordiantes are (2, -3).

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.