Solving equations

Front

What is the first step to solve this equation:
-11 - 3x = 44
Options: Add 3 to both sides, Subtract 11 from both sides, Add 11 to both sides, Divide 3 on both sides.

Back

Add 11 to both sides

Front

Solve: 3x + 7 = -8

Back

-5

Front

Solve:
3(x - 2) = 18

Back

8

Front

Solve: 2(2x + 3) = -6(x + 9)

Back

-6

Front

pV = nRT
solve for R

Back

R= pV/nT

Front

Solve -2 = 4r + s for s.

Back

s = -2 - 4r

Front

Solve for x:
5x - 14 = 8x + 4

Back

x = -6

Front

Solve for x:
4(1-x)+3x=-2(x+1)

Back

x = -6

Front

8x + 4y = 16    ,  for     y

Back

y = -2x + 4

Front

Solve: 12x - 4y = 20 for y

Back

y = 3x - 5