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#40356

linear equations

angles

medium

43 sec

In the figure, line $q$ is parallel to line $r$ , and both lines are intersected by line $s$ . The obtuse angle formed by line $s$ and line $q$ measures $13 0^{\circ}$ . The acute angle formed by line $s$ and line $r$ is labeled $y^{\circ}$ . If $y = 2 x + 10$ and $x = z - 5$ , what is the value of $z$ ?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.