The equation 5x-10y=30is written in standard form. what is the first step when solving for x? add 5x to both sides of the equation. subtract 5x from both sides of the equation. add 10y to both sides of the equation. subtract 10y from both sides of the equation.

i am currently in the exact same situation rn. algebra2/adv algebra is killing

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°