a) Solving for t:
We isolate our unknown t on one side, to leave the factors of t on one side and the numbers on the other:
-1st step: substract 17 from both sides --> 5t = -15
-2nd step: divide by 5 on both sides --> t = -3

b) Solving for x: We now isolate the power of x on one side:
-1st step: add x^3 on both sides --> 2*(x^3)-25=103

-2nd step: add 25 on both sides --> 2*(x^3) = 128

-3rd step: divide by two on both sides --> x^3 = 64

Finally to get rid of the exponent, we take the cube root on both sides of the expression --> x = 4

Solve 10x - 7 > 13x +2

Related Maths GCSE answers

Differentiate the following equation, y = x^9 + 3x^2 + x^(-1)

How do you expand brackets? eg. (2x+3)(3x+4)

Solve: x^2 + 2x - 3 = 0

Solve: a) 5t + 17 = 2 b) x^3 - 25 = 103 - x^3