What is the best first step -2(x+3)=-10

2

Step-by-step explanation:

Let's solve your equation step-by-step.

−

2

(

x

+

3

)

=

−

10

Step 1: Simplify both sides of the equation.

−

2

(

x

+

3

)

=

−

10

(

−

2

)

(

x

)

+

(

−

2

)

(

3

)

=

−

10

(Distribute)

−

2

x

+

−

6

=

−

10

−

2

x

−

6

=

−

10

Step 2: Add 6 to both sides.

−

2

x

−

6

+

6

=

−

10

+

6

−

2

x

=

−

4

Step 3: Divide both sides by -2.

−

2

x

−

2

=

−

4

−

2

x

=

2

answer:

a=9

step-by-step explanation: lmk if you need a explanation

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