Algebra 1 - Unit 1 Review

Solve for variable n.

• n = 18

• n = -18

• n = -1

• n = 1

Solve for x. $8.5x\ +\ 4.25\left(4x\ -\ 3\right)=4\left(6.25x+4\right)-4$  

• x = 25

• No Solution

• x = 49.5

• All Real Numbers

• x = $\frac{7}{5}$

• x = $\frac{5}{7}$

• x = $-\frac{5}{7}$

• x = $-\frac{7}{5}$

• $x\ge-3$
  

• $x<-3$
  

• $x\ge-3$
  

• $x>-3$

• $x\le-2$

• $x\ge-2$
  

• $x<-2$

• $x>-2$

• $x<8$
  

• $x\le8$

• $x>8$

• $x\ge8$

• $x>3$
  

• $x<3$
  

• $x\le3$

• $x\ge3$

• All Real Numbers

• x = 6

• No Solution

• x = 2

If y varies directly as x and y = 162 when x = 18, what is the value of y when x = 25?

• y = 162

• y = 225

• y = 9

• y = 18

Solve the equation for a.

3a + 7b = 15

• $\frac{15-3a}{7}$

• $\frac{15+7b}{3}$

• $15-7b$

• $\frac{15-7b}{3}$