tinynicoll
tinynicoll
22-03-2017
Mathematics
contestada
How do you solve for y=3/7x-13 when x=2.
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pbjgurl123
pbjgurl123
22-03-2017
Simplifying 15x + 3 = 7x + -13 Reorder the terms: 3 + 15x = 7x + -13 Reorder the terms: 3 + 15x = -13 + 7x Solving 3 + 15x = -13 + 7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7x' to each side of the equation. 3 + 15x + -7x = -13 + 7x + -7x Combine like terms: 15x + -7x = 8x 3 + 8x = -13 + 7x + -7x Combine like terms: 7x + -7x = 0 3 + 8x = -13 + 0 3 + 8x = -13 Add '-3' to each side of the equation. 3 + -3 + 8x = -13 + -3 Combine like terms: 3 + -3 = 0 0 + 8x = -13 + -3 8x = -13 + -3 Combine like terms: -13 + -3 = -16 8x = -16 Divide each side by '8'. x = -2 Simplifying x = -2
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