9.1 Solving linear equations — Practise with help

1. $14$. Multiply before adding.
2. $4$.

If an answer differs, revisit Section 1.4 for the order of operations and Section 1.2 for multiplication and division facts.

Undo the addition.

Try the first operation or write the equation before opening the full solution.

Subtract $6$: $x=8$. Check: $8+6=14$.

Undo multiplication by $4$.

Try the first operation or write the equation before opening the full solution.

Divide by $4$: $x=7$. Check: $4(7)=28$.

Undo addition before multiplication.

Try the first operation or write the equation before opening the full solution.

Subtract $3$: $2x=12$. Divide by $2$: $x=6$.

Remove the outside factor first.

Try the first operation or write the equation before opening the full solution.

Divide by $3$: $x+2=7$. Subtract $2$: $x=5$.

Add $1$, then undo division by $4$.

Try the first operation or write the equation before opening the full solution.

Add $1$: $x/4=4$. Multiply by $4$: $x=16$.