Select each value of a for which you can solve the system by elimination without multiplying first.

ax−7y=−13
8x−6y=−2

The options are:
−7

−6

−2

8

42

6

−8

7

step-by-step explanation:

their are no angles. sorry cant .

$15 each

step-by-step explanation:

$45/3 children= $15 each

answer: this is not a question

step-by-step explanation: this is a answer

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