Solve 13+4x=7-4x
- Collect like terms on one side: 4x+4x=7-132. Simplify: 8x=-63. Divide to find the solution for x: x=-6/84. Simplify again for the answer: x=-3/4
HK
Related Maths GCSE answers
All answers ▸When given an equation with both letters and numbers on each side of the equals sign, for instance 4x +3 = 5x - 3, how do you know what to do first?
Solve the simultaneous equations: 2x + y = 18, x - y = 6
Find the volume of a right angled triangular prism with an angle of 28 degrees, hypotenuse of length 10 cm, and projected length of 12.5 cm. Give your answer in cm^3, to three significant figures.
In a chess club, there are x boys and y girls. If 5 more boys and 8 more girls join, there would be half as many boys as girls. Show that y = 2x + 2