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| SOLVING
A SYSTEM OF EQUATIONS WITH TWO UNKNOWNS |
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Again using the easiest equation
to work with, solve for x, when y = 4.
- x = y – 1
- x = 4 – 1 = 3
- x = 3 when y = 4
- (3, 4)
Check:
| (1) |
2x + 3y = 18 → |
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2(3) + 3(4) = 6 + 12 = 18 |
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| (2) |
x – y = – 1 → |
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3 – 4 = – 1 |
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