X- 7 y = -11
5x+2y=-18
Answers
Answered by
1
Two equations are given
x - 7y = -11 ------------eq1
5x + 2y = -18 ---------eq2
now, to find x and y value, we have to make coefficients of any one variable of equation 1 equal to equation 2
so, lets take x
x - 7y = -11 -------*5
5x + 2y = -18 -----*1
5x - 35y = -55 --------eq3
5x + 2y = -18 ----------eq4
now, solve eq3 and eq4
5x - 35y = -55
5x + 2y = -18
(-) (-) (+)
---------------------
0 - 37y = -37
-37y = -37
y = 1
put the value of y in eq3 or eq4
5x + 2y = -18
5x + 2(1) = -18
5x = -18 - 2
5x = -20
x = -4
Answered by
0
Answer is
y = 1
X =-4
y = 1
X =-4
Similar questions