2007-07-18 18:54:17 · 6 answers · asked by baby166_99 2 in Science & Mathematics ➔ Mathematics
From the relation 2t+5 = 7, you get t=1. Then 7t+2 = 9
2007-07-18 18:58:55 · answer #1 · answered by gp4rts 7 · 0⤊ 0⤋
Find out t using the 2t+5=7 equation and then plug the number in to the 7t+2 value
2007-07-19 01:59:12 · answer #2 · answered by violet r 2 · 0⤊ 0⤋
First get the t by itself...so subtract 5 from each side of the equation~ (remember the one with the = sign is the equation)
2t+5 -5= 7-5, which will leave you with
2t=2
now the next step to getting the t by itself is to divide both sides by 2
t=1, then put the value of t as 1 into the first problem
7(1)+2= 9
hope this helps!
2007-07-19 02:02:53 · answer #3 · answered by Anonymous · 0⤊ 0⤋
ok 2t=7-5=2 so t=1
7*1+2=9
2007-07-19 01:59:12 · answer #4 · answered by 037 G 6 · 0⤊ 0⤋
2t + 5 = 7
2t = 2
t = 1
------
7t + 2
= 7(1) + 2
= 7+2
= 9
------
2007-07-19 01:59:36 · answer #5 · answered by Micoaw 3 · 0⤊ 0⤋
9.
2007-07-19 02:04:10 · answer #6 · answered by Anonymous · 0⤊ 1⤋