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maths.com/algebra
Linear Equation - Straight Line Equation - Simple Equation
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Example x - 1 = 7
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| x subtract 1 equals 7 |
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x | - | 1 | = | 7 | | |
| [1] INVERSE |
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of subtract 1 is add 1 |
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| + | 1 | | | | |
| [2] BALANCE |
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add 1 to other side |
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| | | | + | 1 | |
| [3] SIMPLIFY |
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both sides |
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| | x | = | 8 | | |
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| Video Showing Example x - 29 = - 23
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Example x - 3 = 12
With Check
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| x subtract 3 equals 12 |
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x | - | 3 | = | 12 | | |
| [1] the inverse of subtract 3 is add 3 |
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| + | 3 | | | | |
| [2] add 3 to other side |
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| | | | + | 3 | |
| [3] consolidate both sides |
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| | x | = | 15 | | |
| CHECK |
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| [1] substitutiuon is |
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| | x | = | (15) | | |
| [2] do substitution |
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(15) | - | 3 | = | 12 | | |
| [3] consolidate |
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| | 12 | = | 12 | | |
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Video Showing Check
Example z - 3 = 16
Use the introduction to relax and focus |
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Video Showing Check
Example b - 4 = - 10
Equation with a negative solution |
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Video Showing Check
Example
- 7 + y = - 5 |
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