Which equation is true when n = 4? A) 2n = 6
B) n + 3 = 7
C9- n = 13
D
n
= 3
12

n/12 =3 option D is the right answer

Step-by-step explanation:

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option b.

by putting the value of n

4+3=7

answer: x=3 and y=4

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.