7x-10 = 3x+10 —> 4x-10 =10

what is the property of equality used to simplify this equation?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Solve for x and select the correct answer

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm. it decreased by the same amount each year. what was the change in grandpa ernie's height each year