Question

Solve 7x – 2 = 12x

Answer
x ≈ 3.28
x ≈ 0.31
x ≈ –7.22
x ≈ –0.14

Answer 1

Isolate the x's on one side and everything without x on the other

Answer 2

7^x-2=12^x

Answer 3

Subtract 7x from both sides.\[7x-2=12x\]
\[-2=5x\]
Divide by 5
\[x={-2\over 5}\]
and @josettestuff is correct, -2/5 is -0.4 as a decimal

Answer 4

That makes things more fun.

Answer 5

Ok so the question is \[\huge 7^x-2=12^x\]?

Answer 6

This question cannot be solved as is...It has to be 7^(x-2)=12^x. If that's the case, the answer would be -7.22. You need to put the "^" and parentheses or else people won't understand the question.