It's a simple linear equation in 'x'. The 'solution' is the number that 'x' must be, in
order to make it a true statement. There's only one solution. Here's how to find it:
8x + 2 = -9 + 7x
Subtract 2 from each side:
8x = -11 + 7x
Subtract 7x from each side:
x = -11
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8x-2 = -9+7x8x-7x = -9+2x=-7
(1, -1)
x=-7
Re-arrange it: 8x - 7x + 14 = 2ie x + 14 = 2Subtract 14 from each side: x = -12
Subtract 7x from each side: x - 2 = -9Add 2 to each side: x = -7. Each side equals -58, job done.