I HAVE always struggled with equations, despite my maths teachers' misguided conviction that they could be solved. Now we have yet another set of figures on social care, this time under the banner of the Accounts Commission ("Watchdog in stark warning on care costs", The Herald, September 22), and let me see if I have understood them:

On the demand side:

* 0.4 per cent annual increase in overall population (nine per cent between 2012 and 2035);

* One per cent annual increase in the pensioner population (27 per cent between 2012 and 2035), with little apparent improvement in health;

* Two per cent annual increase in youngsters requiring social care (36 per cent increase since 2000);

* 22 per cent more per year needed by 2020 to maintain the service (£667 million on £3.1 billion).

On the supply side:

* £3.1 billion annual social care spend on 300,000 beneficiaries, which looks like £10,000 a head,

* 1.7 per cent planned savings in 2017 (£54 million against £3.1 billion).

While a £9 million sticking plaster to help health boards weather the winter is welcome, it is disappointing to hear Health Secretary Shona Robison repeat the mantra that "integration of health and social services will support better provision of care". It rings as hollow as the Greater Glasgow & Clyde Health Board spokespersons repeating that parking space at the Queen Elizabeth University Hospital is adequate and will not be increased.

I have considerable sympathy for Ms Robison – as a politician she probably feels she has no alternative - but these are not party political matters: the Scottish Government has no business rehearsing this karaoke script, any more than opposition MSPs have making cheap jibes, and if ever there was an issue meriting grown-up cross-party collaboration this is it.

The numbers do not add up – we all know that – and since my erstwhile maths teachers are probably no longer available we must look to those responsible to work together on a design for a silk purse. I know where they can find a sow's ear.

James Sandeman,

3 Scone Place,

Newton Mearns.