Question 1

Evaluate: -13 + (-21) - (-18) + 10 - (-23)

Question 2

$Solution, -13+\left(-21\right)-\left(-18\right)+10-\left(-23\right)=17$

Steps:

$-13+\left(-21\right)-\left(-18\right)+10-\left(-23\right)$

$\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations},\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:$

$\mathrm{Apply\:rule\:}+\left(-a\right)\:=\:-a,\\+\left(-21\right)=-21,\\-13-21-\left(-18\right)+10-\left(-23\right)$

$-13-21=-34,\\-34-\left(-18\right)+10-\left(-23\right)$

$\mathrm{Apply\:rule\:}-\left(-a\right)\:=\:+a,\\-\left(-18\right)=+18,\\-34+18+10-\left(-23\right)$

$-34+18=-16,\\-16+10-\left(-23\right)$

$-16+10=-6,\\-6-\left(-23\right)$

$\mathrm{Apply\:rule\:}-\left(-a\right)\:=\:+a,\\-\left(-23\right)=+23,\\-6+23$

-6+23=17

$The\:Correct\:Answer\:Is\:17$

$Hope\:This\:Helps$

-Austint1414

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