1) 0.11x + 0.08x = 45.6 2) 7x + 9x + 0.32 = 2.72 3) 0.8(x -1.9) = 0.56

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вопрос

1) 0.11x + 0.08x = 45.
Simplify the left side by adding the coefficients of x
0.19x = 45.
Divide both sides by 0.19 to solve for x
x = 45.6 / 0.1
x = 240

2) 7x + 9x + 0.32 = 2.7
Combine like terms on the left side
16x + 0.32 = 2.7
Subtract 0.32 from both sides
16x = 2.
Divide both sides by 16 to solve for x
x = 2.4 / 1
x = 0.15

3) 0.8(x -1.9) = 0.5
Distribute 0.8 to both terms inside the parentheses on the left side
0.8x - 1.52 = 0.5
Add 1.52 to both sides to isolate the x term
0.8x = 2.0
Divide both sides by 0.8 to solve for x
x = 2.08 / 0.
x = 2.6