Simultaneous Exponential Equations

[@yuurishibuya4797]

Didn’t get it, if you skip a step, you get one extra mark but still the kids are allowed calculators in the exam hall?

[@Giganesh_exe]

How did they the equation add when they had they same sign, shouldn't they subtract

[@Scobson]

GSS4K nah it's (1a) + (2)