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Solve equations 2x+y=9 and x+2y=6 to find x and y.

First of all we need to rearrange the equations in a way which allows us to get rid of either the x or y variable. To do this we need to have either the same number of x's or same number of y's in both equat...
JB
Answered by Jake B. • Maths tutor
15065 Views

If I have £730 in my bank account which has 2.5% compound interest per year, how much more money will be in there after two years?

AFTER 1 YEAR : interest = £730 x 0.025 = £18.25 Rotal money in my account = £730 + £18.25 = £748.25. AFTER 2 YEARS: interest = £748.25 x 0.025 = £18.706 Total money in my account = £766.96 (remember to round...
SH
Answered by Sally H. • Maths tutor
4527 Views

Given 4x+7y=25 and 2x+5y=17, identify x and y by solving the simultaneous equations

First thing we have to do is to eliminate one of the variables, either x or y (it doesn’t matter which one). In order to achieve that, we aim to have the same co-efficient (number in front of x or y) of a va...
AO
Answered by Andreas O. • Maths tutor
8463 Views

Given 6x+2y=4 and 5x+y=8, solve the simultaneous equations to find x and y.

The key here is to eliminate one of the variables; it doesn't matter whether we start by trying to get rid of x or y we will arrive at the same solution. For us to eliminate either x or y it is easiest to fi...
RM
Answered by Rebecca M. • Maths tutor
8684 Views

Solve the Simultaneous Equations -3X + 4Y=11 & X-2Y = -5 to find the values of X and Y

Simultaneous Equations are equations involving 2 or more unknowns that have the same value in each equation. The aim is to eliminate all but one unknown. This will then allow us to find the value of the non ...
EU
Answered by Emehakon U. • Maths tutor
13989 Views