Final part 1 ch1 and ch2

 $x-7=-15$  

 $x+10=27$  

 $-2x=10$  

 $7\left(x+4\right)=70$  

 $9x-7=7x-19$  

Get y by itself

 $2x+y=5$  

no spaces
enter like y=6x+7

Get y by itself

 $-4x+2y=8$  

no spaces
enter in like y=6x+7

When do you change signs of inequality?

• add or subtract positive number

• add or subtract negative number

• multiply or divide positive number

• multiply or divide by negative number

 $3x+4\ge5$  

Write

• three times x plus 4 greater than 5

• three times x plus 4 greater than or equal to 5

• three times x plus 4 less than 5

• three times x plus 4 less than or equal to 5

 $3x\ -4>14$  

Solve for x

put number only