Forming equations

• Mathematics
• Upper Secondary (Key Stage 4)
• GCSE

expand and solve:

6(p+3)=42

Which is equation does not represent this equation?

1. ​2​​x+1​​=7
2. ​2​​x​​+1=7
3. 1+​2​​x​​=7
4. ​2​​y​​+1=7

a. How old is Daisy? write it as a mathematical expression. Form the expression in terms of x.

b. Form an equation of the sum of the ages of Gregory and Daisy.

a. How old is Daisy? write it as a mathematical expression. Form the expression in terms of x.

b. Form an equation of the sum of the ages of Gregory and Daisy.

Daisy = x + 2