Mathematics for IGCSE & O level - Equations (Section 8 - No. 28)
When we have the equation, 3x + 5 = 2x + 10, to find 'x', what is the first step to do?
Combine similar terms.
Add the number 5 to the 10.
Isolate x.
Add or subtract similar terms on the left and right sides of the equation.
解释
We have to isolate the variables.