Please help solve the two problems.
2006-09-25 14:25:46 · 7 answers · asked by sgrier_05 1 in Science & Mathematics ➔ Mathematics
1) 7z= -49
taking 7 to the other side
z= -49/7= -7
2) -4+2h=-20
taking 4 to the other side sign does change
2h= -16
taking 2 to the other side the sign wont change
h= -16/2=-8
h=-8
z=-7
2006-09-25 18:42:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
1). 7z = -49
z= -49/7
z= -7
2). -4 + 2h = -20
2h = -20 + 4
2h = -16
h = -16/2
h = -8
2006-09-25 15:26:08 · answer #2 · answered by ayie 2 · 0⤊ 0⤋
z= -7 You know 7 X 7=49 ...so add a negative
h= -8 Take -20 and add the 4. You get -16. Well the negative sign is already with the 4...so you need 2h to equal -16.
Two x ?=-16? 2 x -8! So h=-8
Sorry for the mistake the first time :)
2006-09-25 14:32:00 · answer #3 · answered by tiff4ua 2 · 0⤊ 1⤋
1) z = -7
2) 2h = -16
h = -8
2006-09-25 14:27:51 · answer #4 · answered by Silver 2 · 1⤊ 0⤋
z=-7
h=-8
2006-09-25 14:39:24 · answer #5 · answered by hi 2 · 0⤊ 0⤋
7z=-49
z=-7
-4+2h=-20
2h=-16
h=-8
2006-09-25 14:34:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
z=-7
h=-8
2006-09-26 22:08:01 · answer #7 · answered by ad2006miral 3 · 0⤊ 0⤋