Answer:
x=17
Explanation:
−243=−9(10+x)
Step 1: Simplify both sides of the equation.
−243=−9(10+x)
−243=(−9)(10)+(−9)(x)(Distribute)
−243=−90+−9x
−243=−9x−90
Step 2: Flip the equation.
−9x−90=−243
Step 3: Add 90 to both sides.
−9x−90+90=−243+90
−9x=−153
Step 4: Divide both sides by -9.
−9x/−9
= −153/−9
x=17