Solve 3x+7=8
First we would rearrange so that all non variables are on one side, so it becomes 3x=-1The dividing both sides we get:x=-1/3
DP
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All answers ▸Solve the Simultaneous equation: 4x+y=25, x-3y=13
15/7 + 5/4
Solve the simultaneous equations: 1) 3x+5y=14 and 2) -3y+10=x
Billy wants to buy these tickets for a show. 4 adult tickets at £15 each 2 child tickets at £10 each A 10% booking fee is added to the ticket price. 3% is then added for paying by credit card. Work out the total charge when paying by credit card.