Solving multi-step problems using linear equations in one variable

How can you represent the following problem in an equation: divide -15 by 5 and then add 10 times 2.

•  $\left(-\frac{15}{5}\right)+\left(10\cdot2\right)$  

•  $\frac{\left(-15+10\right)}{5\cdot2}$  

•  $\frac{-15}{5+10\cdot2}$  

•  $\left(-\frac{15}{5}+10\right)\cdot2$  

 $2x-7x=45$  

• 5

• 9

• -5

• -9

Tags

MGSE8.EE.7.b

Solve the equation 4(2x - 3) = 8x - 12

• x = 5

• x = 2

• x = 10

• x = 3

solve for m. 3-2(9+2m)=m

• 2

• 3

• -3

• -4

if (a - 8)/3 = (a -3)/2, than a = ?

• a = 7

• a = -7

• a = 9

• a = -9

Sandra had 36 cats. Yes, that's a lot of cats! She got rid of 8 of the cats because they didn't get along with everyone. Of the remaining cats half were orange and 1/4 were grey. How many orange cats did Sandra have left?

 $2n+5-6n=-3$  

• 2

• -20

• 8

• -19

Solve the following equation:

 $5\left(x+9\right)-2\left(1-x\right)=1$  

 $Solve\ for\ n\ :\ \ \ \ \ 21=\ 3\ +\ 4n\ +5n$   $\$  

• 9

•  $-7$  

• 6

• 2