What is the soultion to the following system of equations
{x+4y=-22
{3x-7y=29

4. a spring scale is constructed so that each 0.10-n increment is separated by 0.50 cm. what spring constant is necessary for the scale to be accurate? -1.0n/cm -0.10n/cm -9.8 n/cm -0.20n/cm

Anyone know? will mark brainliest if correct

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