The Conversation (0)
Sign Up
STEPS
TOOLS
Write the question
Draw two arrows from both equations
Keep top line the same
Times bottom by two
Cross out both Ys as they will equal 0 and find the answer to X and the equals
Work out X by dividing the 10X and the -20 getting X as -2
To find Y rewrite the bottom equation and substitute X for from the previous answer being -2
Work out the new equation
Move all numbers to the right remember to change symbol figure out right side to find Y
The creator of this guide has not included tools