please help me
2006-09-17 16:12:02 · 8 answers · asked by Anonymous in Education & Reference ➔ Homework Help
5x-7=13
+7 +7
----------
5x =20
5x/5=20/5
x=4
2006-09-17 16:16:56 · answer #1 · answered by Liv 2 · 0⤊ 0⤋
x= 4
5*4=20-7=13
2006-09-17 23:13:24 · answer #2 · answered by Anonymous · 1⤊ 0⤋
5x-7= 13
bring the -7 to the other side therefore the sign infront if it changes:
5x= 13+7
5x= 20
then divide the whole thing by 5 to get the value of x
5x =20
x =4
there you go :)
2006-09-18 01:05:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
To get rid of the -7 add 7 to each side (because what you do one side you must do to the other). Then that leaves 5x=20. When there is an x, that means you divide the other side by the number before the x, so 20 divided by 5=4. X=4.
2006-09-17 23:32:28 · answer #4 · answered by Melissa 7 · 0⤊ 0⤋
x=4.
2006-09-17 23:22:16 · answer #5 · answered by countrysoonergurl 2 · 0⤊ 0⤋
add 7 to both sides. divide by 5.
X = 4
2006-09-17 23:13:41 · answer #6 · answered by leikevy 5 · 1⤊ 0⤋
5x-7=13
5x=20
x=4
2006-09-17 23:13:50 · answer #7 · answered by Matty G 2 · 1⤊ 0⤋
-35?
2006-09-17 23:16:58 · answer #8 · answered by Philidor 5 · 0⤊ 0⤋