Values for the functions $\displaystyle {y}_{{1}}$ and $\displaystyle {y}_{{2}}$ are given in the table below. Use it to solve the equation $\displaystyle {y}_{{1}}={y}_{{2}}$

x	-7	-6	-5	-4	-3	-2	-1	0	1	2	3	4	5	6	7
$\displaystyle {y}_{{1}}$	43	40	37	34	31	28	25	22	19	16	13	10	7	4	1
$\displaystyle {y}_{{2}}$	-27	-25	-23	-21	-19	-17	-15	-13	-11	-9	-7	-5	-3	-1	1

x=