91Ó°ÊÓ

In Exercises \(5-14,\) solve the equation. Justify each step. (See Examples 1 and 2 ) $$5 x-10=-40$$

In Exercises \(3-6,\) copy the conditional statement. Underline the hypothesis and circle the conclusion. If you like math, then you like science.

In Exercises \(5-14,\) solve the equation Justify each step. (See Examples 1 and 2 ) $$2 x-8=6 x-20$$

In Exercises \(5-10\) , name the property that the statement illustrates. (See Example 2.) If \(\overline{\mathrm{XY}} \cong \overline{\mathrm{UV}},\) then \(\overline{\mathrm{UV}} \cong \overline{\mathrm{XY}}\)

In Exercises \(5-14,\) solve the equation Justify each step. (See Examples 1 and 2 ) $$5(3 x-20)=-10$$

In Exercises \(9-12,\) make and test a conjecture about the given quantity. the product of any two even integers

In Exercises \(9-12,\) make and test a conjecture about the given quantity. the sum of an even integer and an odd integer

In Exercises \(7-12\) , rewrite the conditional statement in if-then form. (See Example 1.) Two right angles are supplementary angles.

In Exercises \(9-12,\) sketch a diagram of the description. (See Example \(3 . )\) \(\overline{\mathrm{XY}}\) plane \(\mathrm{P}, \overline{\mathrm{XY}}\) bisected by point \(\mathrm{A}\) and point \(\mathrm{C}\) not on \(\overline{\mathrm{XY}}\)

In Exercises \(9-12,\) sketch a diagram of the description. (See Example \(3 . )\) \(\overline{\mathrm{XY}}\) intersecting \(\overline{\mathrm{WV}}\) at point \(\mathrm{A}\) so that \(\mathrm{XA}=\mathrm{VA}\)