What is the solution to this system of linear equations?

y − 4x = 7

2y + 4x = 2

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

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because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram