BUILD FLUENCY. EARN YOUR ASCENT.Sign in Year 7
Equations, inequalities and simultaneous models.
Free examples and worked answers. No account needed.
Practise the method.
Equations, inequalities and simultaneous models.
Equations, inequalities and simultaneous models.
Example 1
2x+7=35
Show worked answer
Answer: 14
- Subtract 7 from both sides: 2x=28.
- Divide both sides by 2:x=14.
- Check in the original equation: 2×(14)+7=35.
Example 2
2(x+5)=24
Show worked answer
Answer: 7
- Divide both sides by 2:x+5=12.
- Subtract 5 from both sides: x=7.
- Check: 2×(7+5)=24.
Example 3
5x+7=67
Show worked answer
Answer: 12
- Subtract 7 from both sides: 5x=60.
- Divide both sides by 5:x=12.
- Check in the original equation: 5×(12)+7=67.
Put it into practice.
Sign in to choose a set, get feedback and keep your progress.