What is the result of adding these two equations?
6x + 2y = -2
3x – 2y = -5

9x=-7

Step-by-step explanation:

Line up the 2 equations like when you add( one on top of the other)

6x+2y=-2

3x-2y=-5

Your going to add the number from the top and add the number directly below it

That would give you

6x+3x = 9x

2y + (-2y)=0 do not put 0 just leave it blank

they cancel each other out since the number is the same but one is negative and the other is positive

-2 + -5=-7

Finally bring put the answers you got together in the corresponding order according to the equation and bring down the equal sign

Final

9x=-7

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752