(a)[2]
Simplify the expression. $5a - 3b + 7a + 2b$.
(b)[2]
Find the value of $8x - 3y$ using these values.
(c)[2]
Solve the equation. $6x - 3 = 2x + 8$.
(d)[2]
Rearrange this formula to make $t$ the subject.
(e)[4]
Solve the simultaneous equations. Show all of your working. $3x - 4y = 30$ $2x + 5y = -3$