How do you solve x+8=9

**Lesson Steps**:

Ok first you subtract 8 from both sides.

X+8=9

-8=-8

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The eights cancel out so left with x=1, becuase positive 8 subtract negative 8, (draw a number line this will help alot) gives you zero and 9 minus 8 equals 1, so then drop down what you have and there you have it x=1. To check if this is right answer plug X back into the original problem: 1+8=9 this is a true statement so you did it right.

**Answer**:

Just solve for x

**Grade**: 4

**Level**: Middle school

**Subject**: Math

**Topic**: Linear equations