3x+5=-7 how do I solve for x

x=-4

Step-by-step explanation:

Start by subtracting 5 on both side of the equation and you will be left with

Now, divide 3 on both side of the equation and you will get x=-4

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²