Top answers

1/7 + 5/3x

1 x 3x / 7 x 3x + 5 x7 / 3x /7 = 3x/21x + 35/21x = 3x + 35 / 21x
RC
Answered by Rachel C. • Maths tutor
3791 Views

4x^2+5x+2=10

x=0.921 x=-2.17
CK
Answered by Charles K. • Maths tutor
3239 Views

How do you solve a set of three similatenous equations with three unknown variables?

You should manipulate the equations into a form where you can eliminate a variable, using two of the equations. From here, you should be left with two new equations and two unknown variables. Repeat the same...
MG
Answered by Matthew G. • Maths tutor
3513 Views

Find x in the following linear equation (5x-3)/4=2

x=11/5
WP
Answered by Will P. • Maths tutor
3528 Views

2x^2-6x+5 can be written in the form a(x -b)^ 2 + c where a, b and c are positive numbers. Find a,b and c.

In order to solve this problem we must first complete the square. To complete the square we need to factorise the equation to get the coefficient of x to be 1. This gives: 2(x^2-3x)+5. We then need to comple...
CH
Answered by Chloe H. • Maths tutor
23877 Views