exam Maths Puzzle Numerical Ability

Hello,

How would I enter 6x + 5 - 7x + 10 - 4x + 7 and get a solution? Is it possible using a scientific calcualtor?

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exam Other Question

Graph on a number line

x - 3 > not equal to 1 Angles A and B are complementary.
Measure of angle A equals to 5x+8 and angle B equals to x-11. Find angle A and angle B