Answer:
x=6.385 and y=1.692
Step-by-step explanation:
solve the simultaneous equations as show;
7(5x - 10y = 15)
10(3x + 7y = 31)
35x-70y=105
30x+70y=310
Eliminate y; 65x=415
solve for x=415/65 = 6.385
solve for y⇒where 5x-10y=15
(5×6.385)-10y=15
31.92-10y=15
16.92=10y
y=1.692
