7(20)+10(15)+15b=425

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Solution for 7(20)+10(15)+15b=425 equation: 


Simplifying
7(20) + 10(15) + 15b = 425

Multiply 7 * 20
140 + 10(15) + 15b = 425

Multiply 10 * 15
140 + 150 + 15b = 425

Combine like terms: 140 + 150 = 290
290 + 15b = 425

Solving
290 + 15b = 425

Solving for variable 'b'.

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

Add '-290' to each side of the equation.
290 + -290 + 15b = 425 + -290

Combine like terms: 290 + -290 = 0
0 + 15b = 425 + -290
15b = 425 + -290

Combine like terms: 425 + -290 = 135
15b = 135

Divide each side by '15'.
b = 9

Simplifying
b = 9

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