What is the solution to the system of equations 8x-10y=-23 and 9x+10y=-16
1 answer:
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Answer:
-2
Step-by-step explanation:
So we want to find the value of:
Simply add:
Thus, drop the word SUM on -2.
Further notes:
To use the number line to solve, first start by placing your point on -6.
Since we are <em>adding</em> 4 to -6, we move to the right. Thus, move from -6 four spaces to the right.
If you do so correctly, you will end up at -2, the same answer we acquired previously.