9(8k-4)+7(3+k)=143

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Solution for 9(8k-4)+7(3+k)=143 equation:


Simplifying
9(8k + -4) + 7(3 + k) = 143

Reorder the terms:
9(-4 + 8k) + 7(3 + k) = 143
(-4 * 9 + 8k * 9) + 7(3 + k) = 143
(-36 + 72k) + 7(3 + k) = 143
-36 + 72k + (3 * 7 + k * 7) = 143
-36 + 72k + (21 + 7k) = 143

Reorder the terms:
-36 + 21 + 72k + 7k = 143

Combine like terms: -36 + 21 = -15
-15 + 72k + 7k = 143

Combine like terms: 72k + 7k = 79k
-15 + 79k = 143

Solving
-15 + 79k = 143

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '15' to each side of the equation.
-15 + 15 + 79k = 143 + 15

Combine like terms: -15 + 15 = 0
0 + 79k = 143 + 15
79k = 143 + 15

Combine like terms: 143 + 15 = 158
79k = 158

Divide each side by '79'.
k = 2

Simplifying
k = 2

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